Caroline Wozniacki (; born 11 July 1990) is an inactive Danish professional
tennis
Tennis is a List of racket sports, racket sport that is played either individually against a single opponent (singles (tennis), singles) or between two teams of two players each (doubles (tennis), doubles). Each player uses a tennis racket st ...
player. She has been ranked as the
world No. 1 in women's singles by the
WTA, holding the position for a total of 71 weeks (including as the year-end world No. 1 in
2010
The year saw a multitude of natural and environmental disasters such as the 2010 Haiti earthquake, the Deepwater Horizon oil spill, and the 2010 Chile earthquake. The 2009 swine flu pandemic, swine flu pandemic which began the previous year ...
and
2011
The year marked the start of a Arab Spring, series of protests and revolutions throughout the Arab world advocating for democracy, reform, and economic recovery, later leading to the depositions of world leaders in Tunisia, Egypt, and Yemen ...
).
Wozniacki has won 30
WTA Tour
The WTA Tour (also known as the Hologic WTA Tour for sponsorship reasons) is a worldwide top-tier tennis tour for women and organized by the Women's Tennis Association. The second-tier tour is the WTA 125 series, and third-tier is the ITF Wome ...
-level singles
titles
A title is one or more words used before or after a person's name, in certain contexts. It may signify their generation, official position, military rank, professional or academic qualification, or nobility. In some languages, titles may be ins ...
, including a
major
Major most commonly refers to:
* Major (rank), a military rank
* Academic major, an academic discipline to which an undergraduate student formally commits
* People named Major, including given names, surnames, nicknames
* Major and minor in musi ...
at the
2018 Australian Open, as well as the
2017 WTA Finals.
Wozniacki had a successful junior career, winning the junior title at the
2006 Wimbledon Championships. After being named the
WTA Newcomer of the Year in 2008, she contested two major finals at the
2009
2009 was designated as the International Year of Astronomy by the United Nations to coincide with the 400th anniversary of Galileo Galilei's first known astronomical studies with a telescope and the publication of Astronomia Nova by Joha ...
and
2014 US Opens, as well as the final at the
2010 WTA Tour Championships, becoming the world No. 1 in 2010. Wozniacki retired from the sport following the
2020 Australian Open. In 2022, she became a commentator for
Tennis Channel and
ESPN
ESPN (an initialism of their original name, which was the Entertainment and Sports Programming Network) is an American international basic cable sports channel owned by the Walt Disney Company (80% and operational control) and Hearst Commu ...
, before beginning a professional comeback at the
2023 Canadian Open and the
US Open.
She is known for her footwork and defensive skill.
Early life
Wozniacki was born in
Odense
Odense ( , , ) is the third largest city in Denmark (after Copenhagen and Aarhus) and the largest city on the island of Funen. As of 1 January 2025, the city proper had a population of 185,480 while Odense Municipality had a population of 210, ...
, Denmark. She is of
Polish descent.
Her mother Anna played on the
Polish women's national volleyball team,
and her father Piotr played professional football. The couple moved to Denmark when Piotr signed for the Danish football club
B1909.
Her older brother,
Patrik Wozniacki, is a former professional footballer in Denmark.
Juniors
Wozniacki had a career-high junior ranking of No. 2 in the world. She made her debut on the
ITF Junior Circuit, the premier 18-and-under junior tour that is run by the
International Tennis Federation
The International Tennis Federation (ITF) is the governing body of world tennis, wheelchair tennis, and beach tennis. It was founded in 1913 as the International Lawn Tennis Federation by twelve national tennis associations. there are 211 nat ...
(ITF), in October 2003 at 13 years and 3 months old. During her first month, she entered two Grade 5 events in Denmark, the lowest-level tournament on the tour. Wozniacki reached the final at both singles events, winning the second over compatriot
Hanne Skak Jensen. With this success, she moved up to Grade 3 and Grade 4 tournaments, winning her first four singles events of 2004. Her win streak of five tournaments and 27 matches came to an end in April with a semifinal loss to
Latisha Chan
Latisha Chan (born 17 August 1989), formerly known by her Chinese name Chan Yung-jan (; ), is a Taiwanese professional tennis player who is a former world No. 1 in doubles. She has won 33 career titles in doubles, including a Grand Slam title ...
at the International Juniors Championships in Manila, her first event outside of Scandinavia as well as her first Grade 1 event. From this point on, Wozniacki only competed in Grade A and Grade 1 events, the two highest-level tournaments. She made her Grade A debut at
Wimbledon
Wimbledon most often refers to:
* Wimbledon, London, a district of southwest London
* Wimbledon Championships, the oldest tennis tournament in the world and one of the four Grand Slam championships
Wimbledon may also refer to:
Places London
* W ...
before turning 14, losing her first main draw match to
Bojana Bobusic. Towards the end of the year, Wozniacki won her first Grade A title at the
Osaka Mayor's Cup.
Wozniacki won several junior tournaments in 2005, including the
Orange Bowl
The Orange Bowl is an annual American college football bowl game played in the Miami metropolitan area. Played annually since 1935 Orange Bowl, January 1, 1935, it is tied with the Sugar Bowl and the Sun Bowl as the second-oldest bowl games in ...
. She made her debut on the
WTA Tour
The WTA Tour (also known as the Hologic WTA Tour for sponsorship reasons) is a worldwide top-tier tennis tour for women and organized by the Women's Tennis Association. The second-tier tour is the WTA 125 series, and third-tier is the ITF Wome ...
at Cincinnati's
Western & Southern Open on 19 July 2005, losing to the top-seeded and eventual champion
Patty Schnyder
Patty Schnyder (born 14 December 1978)
Weltwoche, 14. September 2011 is a Swiss reti ...
in the first round. In the
Nordic Light Open, her other WTA tournament of the year, she lost to
Martina Suchá in the first round.

In 2006, she was the top seed at the
Australian Open
The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
(
junior girls' singles), but lost the final to eighth-seeded
Anastasia Pavlyuchenkova
Anastasia Sergeyevna "Nastia" Pavlyuchenkova (; born 3 July 1991) is a Russian professional tennis player. She reached a career-high singles WTA rankings, ranking of world No. 11 on 8 November 2021. Pavlyuchenkova has won twelve singles titles ...
. She was seeded second with partner
Anna Tatishvili
Anna Tatishvili ( ka, ანა ტატიშვილი, tr, ; born February 3, 1990) is a Georgian-American former professional tennis player.
In her career, Tatishvili won one doubles title on the WTA Tour, 2014 at the Linz Open, partneri ...
in the doubles tournament, but the pair was knocked out in the semifinals by the French-Italian pair of
Alizé Cornet
Alizé Cornet (; born 22 January 1990) is a French professional tennis player. She has won six singles and three doubles titles on the WTA Tour, as well as three singles and three doubles titles on the ITF Women's World Tennis Tour, ITF Circuit. ...
and
Corinna Dentoni, who were seeded eighth. In February at the
Memphis, she reached her first WTA Tour quarterfinal, beating
Kristina Brandi and
Ashley Harkleroad before losing to third-seeded
Sofia Arvidsson
Lena Sofia Alexandra Arvidsson (born 16 February 1984) is a Swedish professional padel player and a former tennis player. In her tennis career, she won two singles titles and one doubles title on the WTA Tour, as well as 20 singles and 13 doubl ...
of Sweden. Before
Wimbledon
Wimbledon most often refers to:
* Wimbledon, London, a district of southwest London
* Wimbledon Championships, the oldest tennis tournament in the world and one of the four Grand Slam championships
Wimbledon may also refer to:
Places London
* W ...
Wozniacki won the
Liverpool International Tennis Tournament, an exhibition tournament, beating Ashley Harkleroad in the final. Later that year she was given a wild card to the qualifying draw at
Wimbledon
Wimbledon most often refers to:
* Wimbledon, London, a district of southwest London
* Wimbledon Championships, the oldest tennis tournament in the world and one of the four Grand Slam championships
Wimbledon may also refer to:
Places London
* W ...
, where she was beaten in the first round by
Miho Saeki
(born 18 March 1976) is a Japanese former tennis player, winner of professional tournaments in doubles and singles, and a representative of Japan in the Fed Cup, Federation Cup.
Career
Saeki's career began officially in April 1994. As a junior f ...
. However, Wozniacki went on to win the
Wimbledon girls' singles title, beating
Magdaléna Rybáriková
Magdaléna Rybáriková (; born 4 October 1988) is a Slovak former professional tennis player. In her career, she won four singles titles and one doubles title on the WTA Tour. Rybáriková reached the semifinals of the 2017 Wimbledon Champion ...
in the final. In August, she reached another WTA Tour quarterfinal, this time at the Nordic Light Open in Stockholm. She defeated top-100 players
Iveta Benešová and
Eleni Daniilidou
Eleni Daniilidou (; ; born 19 September 1982) is a Greek former tennis player from the island of Crete.
She is considered one of the best Greek tennis players of the Open Era, winning five singles titles and three doubles titles on the WTA Tou ...
, then lost to eventual champion and third-seeded
Zheng Jie
Zheng Jie (born 5 July 1983) is a Chinese former professional tennis player. In May 2009, she achieved a career-high singles ranking of world No. 15.
Zheng is one of China's most successful tennis players. She won four singles titles on the ...
.
Wozniacki was seeded second in the
US Open girls' singles. In the first round, she won the first set against Russian
Alexandra Panova
Alexandra Alexandrovna Panova (; born 2 March 1989) is a Russian professional tennis player who specializes in doubles.
She has a career-high WTA doubles ranking of world No. 30 achieved on 28 October 2024. She peaked at No. 71 in singles on 3 ...
, but was disqualified in the second set for verbally abusing an umpire. Wozniacki was said to have used an expletive in referring to a linesman who made a disputed call. However, on her blog, she claimed to have said "take your sunglasses of
ic and was mistaken for talking to the linesman, when she in fact was criticizing herself after the next point.
In her last junior tournament, the
Osaka Mayor's Cup, she won both the girls' singles and doubles. Her first title on the senior tour came in October when she won a $25k tournament in Istanbul by beating
Tatjana Malek in the final. Wozniacki was set to face
Venus Williams
Venus Ebony Starr Williams (born June 17, 1980) is an American inactive tennis player. She has been ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Association, WTA for 11 wee ...
on 27 November in an exhibition match in Copenhagen,
but five days before the event, Williams cancelled because of an injury.
The two did, however, face each other in the
Memphis WTA Tier III event on 20 February. Williams beat Wozniacki, ending a nine-match winning streak for Wozniacki. On 29 November Wozniacki was named ambassador for Danish Junior Tennis by the
Culture Minister of Denmark
The minister for culture of Denmark () is the Danish political minister office responsible for culture, head of the Ministry of Culture of Denmark.
The political responsibility for culture, as well as church and education, was with the kultus ...
at the time,
Brian Mikkelsen.
On 4 February 2007, she won a $75k singles title in
Ortisei, beating Italian
Alberta Brianti. On 4 March, she won the $75k tournament in Las Vegas, beating top-seed
Akiko Morigami in the final. She obtained a wild card for the
Indian Wells Open main draw and made her
Tier I
The WTA Tier I tournaments were Women's Tennis Association tennis elite tournaments held from 1990 until the end of the 2008 season. From 1988 to 1990, the different levels of WTA tournaments were referred to by the term 'Category', and there ...
debut there. She was knocked out in the second round by
Martina Hingis
Martina Hingis (, ; born 30 September 1980) is a Swiss former professional tennis player. She was ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA) for 209 weeks ( fifth-most of all time) and as the world No. ...
. She then made the semifinals of the
Japan Open in Tokyo in October, her first career WTA Tour semifinal. She became the first Danish woman to reach a WTA semifinal since
Tine Scheuer-Larsen
Tine Scheuer-Larsen (born 13 March 1966) is a retired tennis player from Denmark.
She became Danish Champion in singles in 1981 age 15 as the youngest Danish player ever at the time. She also became the highest ranked Danish female player on 29 S ...
at
Bregenz
Bregenz (; ) is the capital of Vorarlberg, the westernmost states of Austria, state of Austria. The city lies on the east and southeast shores of Lake Constance, the third-largest freshwater lake in Central Europe, between Switzerland in the wes ...
in 1986 but was defeated by Venus Williams, in straight sets.
Professional
2008: First WTA Tour title
At the
Australian Open
The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
, Wozniacki defeated
Gisela Dulko
Gisela Dulko (; born 30 January 1985) is an Argentine former tennis player. Although she enjoyed modest success in singles, reaching a career-high ranking of world No. 26 and winning four WTA Tour, WTA titles, her speciality was doubles, where s ...
and 21st seed
Alona Bondarenko
Alona Volodymyrivna Bondarenko Dyachok (; born 13 August 1984) is a Ukrainian former tennis player. Her sisters Valeria and Kateryna Bondarenko are also tennis players.
Her career-high singles ranking is No. 19, achieved on 14 April 2008. Alo ...
on her way to the round of 16, where she lost to the eventual finalist and fourth-seeded
Ana Ivanovic
Ana Schweinsteiger (name at birth, née Ivanovic; born 6 November 1987) is a Serbian former professional tennis player. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tenn ...
. At the
French Open
The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...
, Wozniacki was seeded 30th, making this the first Grand Slam tournament in which she was seeded. She again lost in the third round to the eventual champion and world No. 2, Ana Ivanovic. At
Wimbledon
Wimbledon most often refers to:
* Wimbledon, London, a district of southwest London
* Wimbledon Championships, the oldest tennis tournament in the world and one of the four Grand Slam championships
Wimbledon may also refer to:
Places London
* W ...
, she reached the third round, but lost to second-seeded
Jelena Janković
Jelena Janković ( sr-Cyrl, Јелена Јанковић, ; born 28 February 1985) is a Serbian former professional tennis player. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the W ...
.

Wozniacki won her first WTA Tour title at the
Nordic Light Open in Stockholm without dropping a set, defeating fifth seed
Anabel Medina Garrigues
Ana Isabel Medina Garrigues (, ; born 31 July 1982) is a Spanish tennis coach and former professional player.
As a player she reached a career-high ranking of world No. 16 in 2009, and won 11 singles and 28 doubles titles, including the 2008 ...
in the quarterfinals, top seed and world No. 10
Agnieszka Radwańska
Agnieszka Roma Radwańska (; born 6 March 1989) is a Polish former professional tennis player and current coach. She was ranked world No. 2 in women's singles by the Women's Tennis Association (WTA), in July 2012. Radwańska won 20 WTA Tour sing ...
in the semifinals, and
Vera Dushevina
Vera Yevgenyevna Dushevina (; born 6 October 1986) is a Russian former professional tennis player.
She won one singles title and two doubles titles on the WTA Tour. As a junior, she won the Wimbledon Championships, beating Maria Sharapova in ...
in the final. At the
Summer Olympics
The Summer Olympic Games, also known as the Summer Olympics or the Games of the Olympiad, is a major international multi-sport event normally held once every four years. The inaugural Games took place in 1896 in Athens, then part of the King ...
in Beijing she beat world No. 12,
Daniela Hantuchová
Daniela Hantuchová (; born 23 April 1983) is a Slovak tennis commentator and retired player. She turned professional in 1999 and had her breakthrough year in 2002, when she won her first WTA Tour title at the Indian Wells Open, defeating Martin ...
, in the second round, but then lost to the eventual gold-medalist
Elena Dementieva
Elena Viacheslavovna Dementieva (, ; born 15 October 1981) is a Russian former professional tennis player. She was WTA rankings, ranked world No. 3 in women's singles and world No. 5 in women's doubles by the Women's Tennis Association, WTA. Dem ...
. Wozniacki won her second WTA Tour title at the
New Haven Open, after defeating three seeded players,
Dominika Cibulková
Dominika Cibulková (; born 6 May 1989) is a Slovak former professional tennis player. She is the 2016 WTA Finals champion, becoming the fourth player (after Serena Williams in 2001 WTA Tour Championships, 2001, Maria Sharapova in 2004 WTA Tour ...
,
Marion Bartoli
Marion Bartoli (; born 2 October 1984) is a French former professional tennis player. Bartoli won the 2013 Wimbledon Championships – Women's singles, 2013 Wimbledon Championships singles title, after previously being runner-up in 2007 Wimbledo ...
and
Alizé Cornet
Alizé Cornet (; born 22 January 1990) is a French professional tennis player. She has won six singles and three doubles titles on the WTA Tour, as well as three singles and three doubles titles on the ITF Women's World Tennis Tour, ITF Circuit. ...
, en route to the final, where she stunned world No. 11,
Anna Chakvetadze
Anna Djambuliovna Chakvetadze ( ; born 5 March 1987) is a Russian former professional tennis player.
In her career, Chakvetadze won eight WTA Tour singles titles. She reached her highest singles ranking of world No. 5 in September 2007, after r ...
.
Wozniacki was the 21st seed at the
US Open. She defeated world No. 14,
Victoria Azarenka
Victoria Fiodaraŭna Azarenka (born 31 July 1989) is a Belarusian professional tennis player. She has been ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA), having held the position for a total of 51 weeks ...
, in the third round, but lost to second-seeded and eventual runner-up Jelena Janković in the fourth round. At the
China Open, she lost her opening match to Spaniard Anabel Medina Garrigues. However, she teamed up with Medina Garrigues to clinch the doubles title, defeating the Chinese duo of
Han Xinyun and
Xu Yifan
Xu Yifan (; ; born 8 August 1988), nicknamed Julie, is a Chinese professional tennis player who specializes in doubles. She reached a career-high ranking of No. 7 in doubles, on 13 January 2020. On 13 July 2015, she peaked at No. 148 in the s ...
. It was Wozniacki's first WTA doubles title. At the Tier III
Japan Open, she was the top seed for the first time on the WTA Tour, and won her third career title, defeating
Kaia Kanepi
Kaia Kanepi (; born 10 June 1985) is an Estonian inactive professional tennis player. She achieved her career-high ranking of world No. 15 on 20 August 2012 and has won four singles titles on the WTA Tour.
Described as a 'resident Grand Slam up ...
of Estonia in the final. Wozniacki then took part in the
Danish Open, in her hometown of
Odense
Odense ( , , ) is the third largest city in Denmark (after Copenhagen and Aarhus) and the largest city on the island of Funen. As of 1 January 2025, the city proper had a population of 185,480 while Odense Municipality had a population of 210, ...
. After a string of good performances, she won the tournament, beating world No. 64,
Sofia Arvidsson
Lena Sofia Alexandra Arvidsson (born 16 February 1984) is a Swedish professional padel player and a former tennis player. In her tennis career, she won two singles titles and one doubles title on the WTA Tour, as well as 20 singles and 13 doubl ...
, in the final.
Wozniacki's final win–loss record for the year (ITF matches included, exhibition matches not included) was 58–20 in singles and 8–9 in doubles. She ended the year ranked 12th in singles and 79th in doubles. She finished 13th in the race for the
WTA Finals. She won the
Newcomer of the Year award for 2008.
2009: First major final and top-5 ranking
Wozniacki started the season in
Auckland
Auckland ( ; ) is a large metropolitan city in the North Island of New Zealand. It has an urban population of about It is located in the greater Auckland Region, the area governed by Auckland Council, which includes outlying rural areas and ...
, where she lost to
Elena Vesnina
Elena Sergeyevna Vesnina (born 1 August 1986) is a Russian former professional tennis player who was List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles.
Vesnina is a four-time Grand Slam (tennis), Grand Slam champion, h ...
in the quarterfinals. She also reached the quarterfinals in
Sydney
Sydney is the capital city of the States and territories of Australia, state of New South Wales and the List of cities in Australia by population, most populous city in Australia. Located on Australia's east coast, the metropolis surrounds Syd ...
, this time losing to world No. 2,
Serena Williams
Serena Jameka Williams (born September 26, 1981) is an American former professional tennis player. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Association (WT ...
, after having three match points. Seeded 11th at the
Australian Open
The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
, Wozniacki lost in the third round to Australian
Jelena Dokic.
In
Pattaya
Pattaya is a city in Eastern Thailand, the second-largest city in Chonburi province and the List of municipalities in Thailand, eighth-largest city in Thailand. It is on the east coast of the Gulf of Thailand, about southeast of Bangkok, and h ...
, she lost to
Magdaléna Rybáriková
Magdaléna Rybáriková (; born 4 October 1988) is a Slovak former professional tennis player. In her career, she won four singles titles and one doubles title on the WTA Tour. Rybáriková reached the semifinals of the 2017 Wimbledon Champion ...
in the quarterfinals. Seeded number one at the
Cellular South Cup in Memphis, Wozniacki advanced to the final, but lost to Victoria Azarenka, after they partnered in the doubles final to defeat
Michaëlla Krajicek
Michaëlla Krajicek (; born 9 January 1989) is a Dutch former tennis player. She has won three singles and five doubles titles on the WTA Tour, as well as one WTA 125 tournaments, WTA 125 doubles title, and 14 titles in singles and 24 in double ...
and
Yuliana Fedak.
Wozniacki then took part in the first two
Premier Mandatory tournaments of the year. At
Indian Wells, she lost in the quarterfinals to eventual champion
Vera Zvonareva
Vera Igorevna Zvonareva ( rus, Вера Игоревна Звонарёва, p=ˈvʲerə ˈiɡərʲɪvnə zvənɐˈrʲɵvə, a=Vera zvonareva.ogg; born 7 September 1984) is a Russian former professional tennis player. Her career-high singles ran ...
. In
Miami
Miami is a East Coast of the United States, coastal city in the U.S. state of Florida and the county seat of Miami-Dade County, Florida, Miami-Dade County in South Florida. It is the core of the Miami metropolitan area, which, with a populat ...
, she scored her first win over Elena Dementieva, then lost to
Svetlana Kuznetsova
Svetlana Aleksandrovna Kuznetsova (born 27 June 1985) is a Russian former professional tennis player. She was ranked as high as world No. 2 in singles and world No. 3 in doubles by the Women's Tennis Association, WTA. Kuznetsova won 18 singl ...
in the quarterfinals.

Wozniacki won her first title of the year at the
Amelia Island Championships
The Amelia Island Championships was a women's tennis tournament held in Amelia Island Plantation and later Ponte Vedra Beach, Florida, United States. The Women's Tennis Association event was an WTA International tournaments, International series t ...
on green clay in Ponte Vedra Beach, where she defeated Canadian
Aleksandra Wozniak
Aleksandra Wozniak (; born September 7, 1987) is a Canadian former tennis player. She turned professional in November 2005, and achieved a career-best ranking of No. 21 in June 2009, making her the fifth highest-ranked Canadian singles player of ...
. In
Charleston, she defeated top seed Elena Dementieva in the semifinals, then lost the final to
Sabine Lisicki
Sabine Katharina Lisicki (; born 22 September 1989) is a German inactive professional tennis player.
Lisicki turned professional in 2006, and her breakthrough came in 2009 when she reached the quarterfinals of the 2009 Wimbledon Championships � ...
.
Wozniacki suffered early exits in her next two tournaments, losing to Marion Bartoli in the second round in
Stuttgart
Stuttgart (; ; Swabian German, Swabian: ; Alemannic German, Alemannic: ; Italian language, Italian: ; ) is the capital city, capital and List of cities in Baden-Württemberg by population, largest city of the States of Germany, German state of ...
, and to Victoria Azarenka in the third round in
Rome
Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...
. She reached the final of the inaugural Premier Mandatory
Madrid Open but she lost to world No. 1,
Dinara Safina
Dinara Mubinovna Safina (, ; ; born April 27, 1986) is a Russian former professional tennis player. She was ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA) for 26 weeks, and world No. 8 in doubles. Safina ...
. This was Wozniacki's only match against a reigning No. 1 before she became world No. 1 in October 2010. Seeded tenth at the
French Open
The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...
, she lost to Sorana Cîrstea in the third round. They partnered in doubles, but lost in the first round.
Wozniacki won her second 2009 title on the grass of
Eastbourne
Eastbourne () is a town and seaside resort in East Sussex, on the south coast of England, east of Brighton and south of London. It is also a non-metropolitan district, local government district with Borough status in the United Kingdom, bor ...
. In the final, she defeated
Virginie Razzano. Seeded ninth at
Wimbledon
Wimbledon most often refers to:
* Wimbledon, London, a district of southwest London
* Wimbledon Championships, the oldest tennis tournament in the world and one of the four Grand Slam championships
Wimbledon may also refer to:
Places London
* W ...
, she lost to Sabine Lisicki in the fourth round.
On her 19th birthday, she lost the final of the
Swedish Open
The Swedish Open is a professional tennis tournament held in Båstad, Sweden. It is played
on outdoor clay courts in July.
The men's event (sponsored by Skistar) is an ATP Tour 250 tournament on the ATP Tour.
The women's event (sponsored by ...
to
María José Martínez Sánchez. On hardcourt at the
LA Women's Tennis Championships
The LA Women's Tennis Championships was a Premier-level women's tennis tournament on the WTA Tour held in Carson, California, a suburb of Los Angeles. The tournament was played on outdoor hard courts and a part of the US Open Series.
The tour ...
, she lost in the second round to Sorana Cîrstea. At the
Cincinnati Open, she reached the quarterfinals, then lost to Elena Dementieva. In
Toronto
Toronto ( , locally pronounced or ) is the List of the largest municipalities in Canada by population, most populous city in Canada. It is the capital city of the Provinces and territories of Canada, Canadian province of Ontario. With a p ...
, she lost early in the second round to
Zheng Jie
Zheng Jie (born 5 July 1983) is a Chinese former professional tennis player. In May 2009, she achieved a career-high singles ranking of world No. 15.
Zheng is one of China's most successful tennis players. She won four singles titles on the ...
, but she then went on to defend her title at the
Pilot Pen Tennis in New Haven without losing a set. In the first round, she had her first
double bagel win as a professional, 6–0, 6–0, over
Edina Gallovits in 41 minutes. In the final, she beat Elena Vesnina for her third title of the season.
Wozniacki was the ninth seed at the
US Open where she made her best result to date by becoming the first Danish woman to reach a Grand Slam championship final. Her route to the final included a hard-fought three-set win against reigning French Open champion Svetlana Kuznetsova in the fourth round, then scored straight sets wins against
Melanie Oudin in the quarterfinals and
Yanina Wickmayer
Yanina Wickmayer (born 20 October 1989) is a Belgian professional tennis player. She reached the semifinals at the 2009 US Open – Women's singles, 2009 US Open, and a career-high WTA ranking of No. 12, on 19 April 2010. In doubles, she achieve ...
in the semifinals. In the final, she was defeated by
Kim Clijsters.
In the second round of the
Pan Pacific Open, she retired because of a viral illness down 0–5 against Aleksandra Wozniak. She then lost to
María José Martínez Sánchez in the first round of the
China Open, and to
Samantha Stosur
Samantha Jane Stosur (born 30 March 1984) is an Australian former professional tennis player. She is a former List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles, a ranking which she first achieved on 6 February 2006 and ...
in the semifinals in
Osaka
is a Cities designated by government ordinance of Japan, designated city in the Kansai region of Honshu in Japan. It is the capital of and most populous city in Osaka Prefecture, and the List of cities in Japan, third-most populous city in J ...
. The following week in
Luxembourg
Luxembourg, officially the Grand Duchy of Luxembourg, is a landlocked country in Western Europe. It is bordered by Belgium to the west and north, Germany to the east, and France on the south. Its capital and most populous city, Luxembour ...
, she retired with a hamstring injury in the first round while leading 7–5, 5–0 over
Anne Kremer. This aroused controversy because of the scoreline.
Wozniacki's stellar 2009 results qualified her for the year-end
WTA Tour Championships WTA may refer to:
Organizations
*Washington Trails Association
Washington Trails Association (WTA) is a non-profit organization that advocates protection of hiking trails and wilderness, conducts trail maintenance, and promotes hiking in Washin ...
in Doha for the first time. She won two of three group matches and advanced to the semifinals. There she struggled with a stomach strain and a left thigh injury against world No. 1 Serena Williams, and retired while trailing 6–4, 0–1.
2010: First Premier Mandatory title and world No. 1
In her first WTA tournament of the year, Wozniacki suffered an opening-round loss to
Li Na
Li Na (born 26 February 1982) is a Chinese former professional tennis player. She was WTA rankings, ranked world No. 2 in women's singles by the Women's Tennis Association. Li won nine WTA Tour-level singles titles, including two Grand Slam (t ...
of China in the
Sydney
Sydney is the capital city of the States and territories of Australia, state of New South Wales and the List of cities in Australia by population, most populous city in Australia. Located on Australia's east coast, the metropolis surrounds Syd ...
. She was seeded fourth at the
Australian Open
The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
, her first top-eight seed in a Grand Slam. She again fell to Li, this time in the fourth round, in straight sets. Despite her fourth-round exit, Wozniacki achieved a career-high ranking of No. 3.
As the second seed at
Indian Wells, Wozniacki reached the final, then lost to former world No. 1, Jelena Janković. With this result, she achieved a new career-high ranking of world No. 2. At the
Miami Open, Wozniacki lost her quarterfinal match against the newly returned
Justine Henin
Justine Henin (; born 1 June 1982) is a Belgian former professional tennis player. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Association (WTA) for 117 weeks, i ...
.
Her next tournament was in
Ponte Vedra Beach, where she defeated
Olga Govortsova
Olga Alekseyevna Govortsova ( (Volha Alyakseyeuna Havartsova); ; born 23 August 1988) is a Belarusian professional tennis player. On 23 June 2008, she achieved a career-high singles ranking of world No. 35. On 29 August 2011, she peaked at No. 2 ...
in the final. Wozniacki then competed at the
Family Circle Cup
The Charleston Open, currently sponsored by Credit One, is a WTA Tour-affiliated professional tennis tournament for women, held every year since 1973. It is the oldest professional all-women's tournament in America with a $1,064,510 purse. The t ...
in Charleston. She advanced to the semifinals, where she met Vera Zvonareva. Wozniacki was forced to retire down 2–5 when she rolled her ankle.
Despite her ongoing ankle injury, she continued to compete in tournaments through the clay-court season, suffering early losses in
Stuttgart
Stuttgart (; ; Swabian German, Swabian: ; Alemannic German, Alemannic: ; Italian language, Italian: ; ) is the capital city, capital and List of cities in Baden-Württemberg by population, largest city of the States of Germany, German state of ...
,
Rome
Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...
and
Madrid
Madrid ( ; ) is the capital and List of largest cities in Spain, most populous municipality of Spain. It has almost 3.5 million inhabitants and a Madrid metropolitan area, metropolitan area population of approximately 7 million. It i ...
. She then reached the quarterfinals in
Warsaw
Warsaw, officially the Capital City of Warsaw, is the capital and List of cities and towns in Poland, largest city of Poland. The metropolis stands on the Vistula, River Vistula in east-central Poland. Its population is officially estimated at ...
, but retired after losing the first set.
Wozniacki was seeded third at the
French Open
The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...
. She posted her best result at Roland Garros by advancing to the fourth round without dropping a set. After defeating
Flavia Pennetta
Flavia Pennetta (; born 25 February 1982) is an Italian former professional tennis player. She became Italy's first top-ten female singles player on 17 August 2009 and the first Italian to be ranked List of WTA number 1 ranked doubles tennis pla ...
in the round of 16 in three sets, she lost to eventual champion
Francesca Schiavone
Francesca Schiavone (; born 23 June 1980) is an Italian former professional tennis player. She had career-high rankings of world No. 4 in women's singles and No. 8 in women's doubles by the Women's Tennis Association (WTA). Schiavone won eight W ...
in the quarterfinals. Wozniacki partnered with Daniela Hantuchová in doubles, but they withdrew before their second round match against the Williams sisters because of a right shoulder injury to Hantuchová.
As the defending champion, Wozniacki lost early at the
Eastbourne International
The Eastbourne Open (also known as Eastbourne International, formerly Rothesay) is a tennis tournament on the WTA Tour and the ATP Tour held at the Devonshire Park Lawn Tennis Club, Eastbourne, United Kingdom. Held since 1974, it is classified as ...
, her first grass-court tournament of the year, to
Aravane Rezaï. Wozniacki was seeded third at
Wimbledon
Wimbledon most often refers to:
* Wimbledon, London, a district of southwest London
* Wimbledon Championships, the oldest tennis tournament in the world and one of the four Grand Slam championships
Wimbledon may also refer to:
Places London
* W ...
, where she defeated
Tathiana Garbin
Tathiana Garbin (; born 30 June 1977) is an Italian retired tennis player.
She was Gold Medalist at the 1997 Mediterranean Games and Italian capitan in leading the Italian national team (composed by Jasmine Paolini, Sara Errani, Martina Tre ...
,
Chang Kai-chen
Chang Kai-chen ( zh, t=張凱貞, p=Zhāng Kǎizhēn; ; born January 13, 1991), also known as Kelly Chang, is a Taiwanese former professional tennis player.https://www.wtatennis.com/players/313923/-
Career
Her father is Chang Chin-lai and mo ...
, and
Anastasia Pavlyuchenkova
Anastasia Sergeyevna "Nastia" Pavlyuchenkova (; born 3 July 1991) is a Russian professional tennis player. She reached a career-high singles WTA rankings, ranking of world No. 11 on 8 November 2021. Pavlyuchenkova has won twelve singles titles ...
en route to the fourth round, where she was defeated by
Petra Kvitová
Petra Kvitová (; born 8 March 1990) is a Czech professional tennis player. Known for her powerful left-handed groundstrokes and variety, Kvitová has won 31 career singles titles, including two Grand Slam (tennis)#Tournaments, major titles ...
.
Wozniacki was the first seed at the inaugural
Danish Open. It was the first Danish WTA Tour tournament, created largely out of Wozniacki's popularity in Denmark. She defeated
Klára Zakopalová to win her second title of the year.
In
Cincinnati
Cincinnati ( ; colloquially nicknamed Cincy) is a city in Hamilton County, Ohio, United States, and its county seat. Settled in 1788, the city is located on the northern side of the confluence of the Licking River (Kentucky), Licking and Ohio Ri ...
, she lost in the third round to Marion Bartoli. As the second seed in
Montreal
Montreal is the List of towns in Quebec, largest city in the Provinces and territories of Canada, province of Quebec, the List of the largest municipalities in Canada by population, second-largest in Canada, and the List of North American cit ...
, Wozniacki was forced to wait two days to play her semifinal match with Svetlana Kuznetsova because of heavy rain. She defeated both Kuznetsova and Vera Zvonareva on the same day for her third singles title of the year. As the top seed in
New Haven
New Haven is a city of the U.S. state of Connecticut. It is located on New Haven Harbor on the northern shore of Long Island Sound. With a population of 135,081 as determined by the 2020 U.S. census, New Haven is the third largest city in Co ...
, Wozniacki defeated Nadia Petrova in the final for her third consecutive title there. By virtue of this, she also won the
US Open Series.
Wozniacki was the top seed at the
US Open due to the withdrawal of world No. 1, Serena Williams. She advanced to the semifinals, then lost to Vera Zvonareva. With her semifinal appearance, Wozniacki became one of only two women (the other being Venus Williams) to have reached at least the fourth round of all four Grand Slam events in 2010.
Her first tournament during the Asian hard-court season was the
Pan Pacific Open in Tokyo. She won back-to-back three-setters against Victoria Azarenka and Elena Dementieva, the latter of whom she beat in the final to win her fifth title of the year.
She then entered the
China Open in Beijing. In the third round, Wozniacki faced Petra Kvitová, who had routed her at Wimbledon. Wozniacki avenged that loss, which ensured that she would replace Serena Williams as the new world No. 1 after the tournament. She was the fifth player to reach the No. 1 position
without having won a Grand Slam tournament. She also became the first Danish player, man or woman, to reach the top ranking. Wozniacki ultimately won the tournament, defeating Zvonareva in the final to win her sixth title of the year and twelfth overall.
At the year-end
WTA Championships in Doha, Wozniacki was drawn in a group with Francesca Schiavone, Samantha Stosur and Elena Dementieva.
She defeated Dementieva in her first round-robin game, but lost to Stosur in the second. She won her last round-robin match in the group against Schiavone, securing the year-end world No. 1 rank and a place in the semifinals against the winner of the other group, Vera Zvonareva. Wozniacki defeated her, but then lost the final in three sets to Kim Clijsters. Wozniacki ended the season with six WTA Tour singles titles, the most on the tour. Clijsters won five, and no other player won more than two.
2011: Year-end No. 1 for the second year in a row
During the off season, Wozniacki switched her racquet make from Babolat to Yonex. She began her 2011 season with an exhibition match in Thailand against Kim Clijsters where she lost in a
super tie-break. Wozniacki then played another exhibition, the team
Hong Kong Tennis Classic, where she represented and was captain of Team Europe. She won two matches against Team Asia Pacific, then was crushed by world No. 2, Vera Zvonareva, in the final against Team Russia. Her first WTA tournament was the
Sydney International
The Sydney International (formerly known as the Championship of New South Wales and New South Wales Open, with various title sponsors), formerly sponsored as the Apia International Sydney from 2012 to 2017, was a professional tennis tournament ...
. She received a bye into the second round, where she lost to Dominika Cibulková.
The
Australian Open
The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
was Wozniacki's first major as world No. 1. She lost to Li Na in the semifinals, failing to convert a match point when trying to serve out the match at 5–4 in the second set.
Wozniacki dropped to No. 2 behind Clijsters during the week of 14 February, but regained the top spot the following week. She received a bye to the second round in
Dubai
Dubai (Help:IPA/English, /duːˈbaɪ/ Help:Pronunciation respelling key, ''doo-BYE''; Modern Standard Arabic, Modern Standard Arabic: ; Emirati Arabic, Emirati Arabic: , Romanization of Arabic, romanized: Help:IPA/English, /diˈbej/) is the Lis ...
where, in the quarterfinals, she beat
Shahar Pe'er
Shahar Pe'er (, ; born ) is an Israeli retired tennis player.
Pe'er won five singles and three doubles titles on the WTA Tour, as well as four singles and three doubles titles on the International Tennis Federation, ITF circuit in her career ...
to ensure her No. 1 position in the next rankings update. She went on to defeat Svetlana Kuznetsova in the final to take her 13th career singles title and first of the year. In
Doha
Doha ( ) is the capital city and main financial hub of Qatar. Located on the Persian Gulf coast in the east of the country, north of Al Wakrah and south of Al Khor (city), Al Khor and Lusail, it is home to most of the country's population. It ...
, she received a bye to the second round and reached the final, defeating Nadia Petrova, Flavia Pennetta and Marion Bartoli in straight sets. She lost to Vera Zvonareva in the final. In the first Premier Mandatory event of the year in
Indian Wells, Wozniacki made it to the final, where she defeated Marion Bartoli for her 14th singles title. At the
Miami Open, she lost in the fourth round to 21st seed
Andrea Petkovic. She made an uncharacteristic 52 unforced errors and later said she had been playing a lot of matches when she was asked about fatigue.
In the
Family Circle Cup
The Charleston Open, currently sponsored by Credit One, is a WTA Tour-affiliated professional tennis tournament for women, held every year since 1973. It is the oldest professional all-women's tournament in America with a $1,064,510 purse. The t ...
, Wozniacki made it to the final, where she defeated unseeded Elena Vesnina to take her third title of the year, 15th of her career. In
Stuttgart
Stuttgart (; ; Swabian German, Swabian: ; Alemannic German, Alemannic: ; Italian language, Italian: ; ) is the capital city, capital and List of cities in Baden-Württemberg by population, largest city of the States of Germany, German state of ...
, she made it to her fifth final of the year, where she lost to
Julia Görges in straight sets. In
Madrid
Madrid ( ; ) is the capital and List of largest cities in Spain, most populous municipality of Spain. It has almost 3.5 million inhabitants and a Madrid metropolitan area, metropolitan area population of approximately 7 million. It i ...
, Wozniacki lost to Görges again, this time in the third round. In
Rome
Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...
, she lost to eventual champion Maria Sharapova in the semifinal round. At the
Brussels Open, Wozniacki reached the semifinals, where she defeated third seed and reigning French Open champion, Francesca Schiavone. In the final, Wozniacki's sixth of the year, she defeated eighth seed
Peng Shuai
Peng Shuai (; ; born 8 January 1986) is a Chinese former professional tennis player. In February 2014, she was ranked as the List of WTA number 1 ranked doubles tennis players, world No. 1 doubles player by the Women's Tennis Association (WTA ...
to win her first red clay title, having won three titles on the faster green clay. Wozniacki was the top seed at the
French Open
The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...
, but was upset in the third round by 28th seed Daniela Hantuchová.
Wozniacki's next tournament was the
Danish Open in her native country. In the final, she defeated fourth seed
Lucie Šafářová
Lucie Šafářová (; born 4 February 1987) is a Czech professional tennis player who was ranked List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles, and No. 5 in singles.
She is a five-time Grand Slam champion in doubles ...
, taking her fifth title of the year. At
Wimbledon
Wimbledon most often refers to:
* Wimbledon, London, a district of southwest London
* Wimbledon Championships, the oldest tennis tournament in the world and one of the four Grand Slam championships
Wimbledon may also refer to:
Places London
* W ...
, she had straight-set wins until the fourth round, but then lost to 24th seed Dominika Cibulková.
At the Rogers Cup, Wozniacki made an early second-round exit. She was defeated by Roberta Vinci in straight sets despite holding a 5–1 lead in the second set. Wozniacki was the top seed at the
Cincinnati Open, but lost in the second round to world No. 76,
Christina McHale. Next playing at the
New Haven Open, Wozniacki won the title for the fourth year in a row, defeating Francesca Schiavone in the semifinals and qualifier
Petra Cetkovská
Petra Cetkovská (; born 8 February 1985) is a retired Czech tennis player. Having turned professional in 2000, she reached a career-high singles ranking of world No. 25, on 18 June 2012. Over her career, Cetkovská defeated top-ten players Mari ...
in the final.
At the
US Open, Wozniacki was the first seed. In the first round, she defeated
Nuria Llagostera Vives
Nuria Llagostera Vives (; born 16 May 1980) is a Spanish former tennis player. In June 2005, she reached her best singles ranking of world No. 35. In November 2009, she peaked at No. 5 in the WTA doubles rankings.
Professional career
Llagoster ...
. In the second round, Wozniacki defeated
Arantxa Rus
Arantxa Rus (; born 13 December 1990) is a Dutch professional tennis player.
She won one WTA Tour singles title at the 2023 Hamburg European Open – Women's singles, 2023 Hamburg Open and four in doubles.
Her biggest singles successes to date ...
, and in the third round, defeated
Vania King
Vania King (born February 3, 1989) is a retired American tennis player. A former top-10 doubles player, King won both the Wimbledon and US Open women's doubles titles in 2010 with partner Yaroslava Shvedova, with whom she also reached the fi ...
. In the fourth round, Wozniacki fought back from a 7–6, 4–1 deficit, defeating Svetlana Kuznetsova. Wozniacki then progressed to the semifinals by defeating Andrea Petkovic in the quarterfinals. She lost her semifinal match to Serena Williams.
In
Tokyo
Tokyo, officially the Tokyo Metropolis, is the capital of Japan, capital and List of cities in Japan, most populous city in Japan. With a population of over 14 million in the city proper in 2023, it is List of largest cities, one of the most ...
, Wozniacki lost to Kaia Kanepi in the third round. In
Beijing
Beijing, Chinese postal romanization, previously romanized as Peking, is the capital city of China. With more than 22 million residents, it is the world's List of national capitals by population, most populous national capital city as well as ...
, she lost to Flavia Pennetta in the quarterfinals. This was Wozniacki's only loss in the 12 quarterfinals she reached in 2011.
Wozniacki was the top seed at the
WTA Championships. In the group stage, she upset Agnieszka Radwańska but then lost to Vera Zvonareva. She also lost to Petra Kvitová in her final round-robin match and so failed to advance to semifinals for the first time in three appearances. She finished the year as world No. 1 for the second consecutive year. Despite narrowly edging Petra for the year-end No. 1 ranking in points, she lost on all Player of Year awards to Petra.
2012: Beginning of singles decline
Wozniacki began her season by representing Denmark at the
2012 Hopman Cup
The Hopman Cup XXIV (also known as the Hyundai Hopman Cup for sponsorship reasons) corresponds to the 24th edition of the Hopman Cup tournament between nations in men's and women's tennis. The tournament commenced on 31 December 2011 at the Bur ...
with
Frederik Nielsen as her partner. Wozniacki won two of her three round robin matches in singles, defeating
Bethanie Mattek-Sands and
Tsvetana Pironkova
Tsvetana Kirilova Pironkova ( ; born 13 September 1987) is a Bulgarians, Bulgarian former tennis player. Considered to be one of the best grass court players of her generation, she has been noted for her "cerebral" skills on the surface, reachi ...
, then lost to world No. 2 Petra Kvitová. Her first WTA Tour event was the
Sydney International
The Sydney International (formerly known as the Championship of New South Wales and New South Wales Open, with various title sponsors), formerly sponsored as the Apia International Sydney from 2012 to 2017, was a professional tennis tournament ...
where she defeated Dominika Cibulková when trailing 4–0 in the third set. She lost to Agnieszka Radwańska in three sets in the quarterfinals, after serving for the match at 5–4 up in the second set.
Wozniacki competed at the
Australian Open
The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
as the top seed. She defeated
Anastasia Rodionova
Anastasia Ivanovna Rodionova (; born 12 May 1982) is a Russian-born Australian former professional tennis player.
Rodionova has won 11 doubles titles on the WTA Tour, as well as eight singles and 13 doubles titles on the ITF Circuit. On 16 Au ...
,
Anna Tatishvili
Anna Tatishvili ( ka, ანა ტატიშვილი, tr, ; born February 3, 1990) is a Georgian-American former professional tennis player.
In her career, Tatishvili won one doubles title on the WTA Tour, 2014 at the Linz Open, partneri ...
,
Monica Niculescu
Monica Niculescu (born 25 September 1987) is a Romanian professional tennis player. She has been WTA rankings, ranked by the Women's Tennis Association, WTA as high as No. 28 in singles and No. 11 in doubles. She has won three singles and 10 dou ...
and Jelena Janković, all in straight sets, to reach the quarterfinals in which she lost to the defending champion Kim Clijsters. As a result, Wozniacki lost her top ranking and was replaced by the 2012 champion Victoria Azarenka. Next playing at
Doha
Doha ( ) is the capital city and main financial hub of Qatar. Located on the Persian Gulf coast in the east of the country, north of Al Wakrah and south of Al Khor (city), Al Khor and Lusail, it is home to most of the country's population. It ...
, Wozniacki lost to Lucie Šafářová in the second round, having received a first-round bye. Wozniacki was the defending champion in
Dubai
Dubai (Help:IPA/English, /duːˈbaɪ/ Help:Pronunciation respelling key, ''doo-BYE''; Modern Standard Arabic, Modern Standard Arabic: ; Emirati Arabic, Emirati Arabic: , Romanization of Arabic, romanized: Help:IPA/English, /diˈbej/) is the Lis ...
and
Indian Wells, but failed to defend either title, losing to Julia Görges and Ana Ivanovic, respectively.
Wozniacki reached the semifinals in
Miami
Miami is a East Coast of the United States, coastal city in the U.S. state of Florida and the county seat of Miami-Dade County, Florida, Miami-Dade County in South Florida. It is the core of the Miami metropolitan area, which, with a populat ...
, beating
Barbora Záhlavová-Strýcová, Petra Cetkovská,
Yanina Wickmayer
Yanina Wickmayer (born 20 October 1989) is a Belgian professional tennis player. She reached the semifinals at the 2009 US Open – Women's singles, 2009 US Open, and a career-high WTA ranking of No. 12, on 19 April 2010. In doubles, she achieve ...
and Serena Williams, all in straight sets. Wozniacki then lost to 2nd seed Maria Sharapova. Wozniacki did not defend her title in
Charleston as she was not allowed to participate under WTA rules because two top-6 players had already entered the draw. Wozniacki then played her home tournament in
Copenhagen
Copenhagen ( ) is the capital and most populous city of Denmark, with a population of 1.4 million in the Urban area of Copenhagen, urban area. The city is situated on the islands of Zealand and Amager, separated from Malmö, Sweden, by the ...
. She reached the final but lost to
Angelique Kerber
Angelique Kerber (; born 18 January 1988) is a German former professional tennis player. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Association (WTA) for 34 wee ...
, her first loss at the tournament since the start in 2010.
She then played the
French Open
The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...
, where she lost to Kaia Kanepi in three sets in the third round. At the
Wimbledon
Wimbledon most often refers to:
* Wimbledon, London, a district of southwest London
* Wimbledon Championships, the oldest tennis tournament in the world and one of the four Grand Slam championships
Wimbledon may also refer to:
Places London
* W ...
, she lost to Austrian
Tamira Paszek
Tamira Shelah Paszek (born 6 December 1990) is an Austrian tennis player.
On 11 February 2013, she reached her career-high singles ranking of world No. 26. On 6 May 2013, she peaked at No. 93 in the doubles rankings.
Paszek has won three single ...
in the first round. It was her first opening-round exit from any Grand Slam since making her professional debut at the
2007 French Open.
Wozniacki represented
Denmark
Denmark is a Nordic countries, Nordic country in Northern Europe. It is the metropole and most populous constituent of the Kingdom of Denmark,, . also known as the Danish Realm, a constitutionally unitary state that includes the Autonomous a ...
at the
Olympics
The modern Olympic Games (Olympics; ) are the world's preeminent international sporting events. They feature summer and winter sports competitions in which thousands of athletes from around the world participate in a variety of competit ...
as the eighth seed in the women's singles event. In the first three rounds she defeated
Anne Keothavong, Yanina Wickmayer and Daniela Hantuchová. She was then defeated by the eventual champion Serena Williams in the quarterfinals. She next participated in the
Rogers Cup where she lost to Petra Kvitová in the semifinals, and the
Western & Southern Open where she was defeated in the third round by Anastasia Pavlyuchenkova. As the four-time defending champion at the
New Haven Open, Wozniacki retired against
Maria Kirilenko
Maria Yuryevna Kirilenko ( rus, Мари́я Ю́рьевна Кириле́нко, p=mɐˈrʲijə kʲɪrʲɪˈlʲenkə, a=Ru-Maria_Kirilenko.ogg; born 25 January 1987) is a Russian former professional tennis player. A junior Grand Slam champio ...
in the semifinals due to a right knee injury, which she had suffered in her quarterfinal win over Dominika Cibulková.
Wozniacki, still suffering with the injury, was seeded eighth at the
US Open, but did not advance past the first round. She lost in two sets to 96th-ranked Romanian
Irina-Camelia Begu
Irina-Camelia Begu (born 26 August 1990) is a Romanian tennis player. She reached a career-high WTA ranking, WTA singles ranking of world No. 22 , in August 2016. Two years later, she reached her highest ranking in doubles, also No. 22. She is ...
. As a result of the loss, Wozniacki dropped out of the top 10 for the first time in three years. Following her US Open disappointment, Wozniacki won her first tournament of the year in
Seoul
Seoul, officially Seoul Special Metropolitan City, is the capital city, capital and largest city of South Korea. The broader Seoul Metropolitan Area, encompassing Seoul, Gyeonggi Province and Incheon, emerged as the world's List of cities b ...
by defeating
Arantxa Rus
Arantxa Rus (; born 13 December 1990) is a Dutch professional tennis player.
She won one WTA Tour singles title at the 2023 Hamburg European Open – Women's singles, 2023 Hamburg Open and four in doubles.
Her biggest singles successes to date ...
,
Caroline Garcia
Caroline Garcia (, born 16 October 1993) is a French professional tennis player. She had a career-high WTA rankings, ranking of world No. 4 in singles and world No. 2 in doubles. Garcia was the 2022 WTA Finals – Singles, 2022 WTA Finals champi ...
, Klára Zakopalová,
Ekaterina Makarova
Ekaterina Valeryevna Makarova (; ; born 7 June 1988) is a Russian former professional tennis player who was ranked List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles, and world No. 8 in singles.
She is a four-time Gra ...
and Kaia Kanepi in the final. It was her 19th career title.
Her next tournament was the
Pan Pacific Open in Tokyo. She defeated
Bojana Jovanovski, Daniela Hantuchová and Li Na, then lost to Agnieszka Radwańska in the quarterfinals. At the
China Open in Beijing, Wozniacki defeated
Chanelle Scheepers
Chanelle Scheepers ( ; born 13 March 1984) is a retired South African tennis player.
She won one singles and one doubles title on the WTA Tour, as well as 12 singles and 20 doubles titles on the ITF Women's Circuit in her career. On 10 Octobe ...
and
Hsieh Su-wei
Hsieh Su-wei (; ; born 4 January 1986) is a Taiwanese professional tennis player. A former List of WTA number 1 ranked doubles tennis players, world No. 1 in Doubles tennis, doubles with nine Grand Slam (tennis), Grand Slam titles, she is rega ...
but lost to Angelique Kerber in the third round. Wozniacki's next tournament was the
Kremlin Cup. As the third seed in the tournament, she defeated top seed Samantha Stosur in the final in three sets to take home her second title of the year, and 20th overall. At the year-end
Tournament of Champions in Sofia, Wozniacki won her three group matches and reached the final but lost to Nadia Petrova. She ended the year ranked 10th.
In December 2012, during an exhibition match in Brazil, Wozniacki imitated friend and fellow tennis player Serena Williams by stuffing towels in her shirt and skirt in order to appear to be large-chested and have a large rear end. This act divided opinion on social network sites. It was noted that Wozniacki had done the impression before without controversy. Williams also defended Wozniacki in an email to ''
USA Today
''USA Today'' (often stylized in all caps) is an American daily middle-market newspaper and news broadcasting company. Founded by Al Neuharth in 1980 and launched on September 14, 1982, the newspaper operates from Gannett's corporate headq ...
'' and pointed out that they are friends and that the act was not racist. Williams added, however, that if people feel this way, then she should do something else next time.
2013: Continued struggles with form
Wozniacki began the year in
Brisbane
Brisbane ( ; ) is the List of Australian capital cities, capital and largest city of the States and territories of Australia, state of Queensland and the list of cities in Australia by population, third-most populous city in Australia, with a ...
where as the eighth seed, she lost in the first round to qualifier
Ksenia Pervak in three sets. Wozniacki then competed at the
Sydney International
The Sydney International (formerly known as the Championship of New South Wales and New South Wales Open, with various title sponsors), formerly sponsored as the Apia International Sydney from 2012 to 2017, was a professional tennis tournament ...
where she defeated
Urszula Radwańska
Urszula Radwańska (; born 7 December 1990) is a Polish professional tennis player.
Radwańska has won one doubles title on the WTA Tour, as well as seven singles and eleven doubles titles on the ITF Women's Circuit. On 8 October 2012, she reac ...
but lost to Kuznetsova in the second round. At the
Australian Open
The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
, Wozniacki defeated Sabine Lisicki, Donna Vekić and
Lesia Tsurenko, but once again lost to Kuznetsova, this time in the fourth round.
Her next tournament was the
Qatar Ladies Open where she reached the quarterfinals with wins over
Mervana Jugić-Salkić
Mervana Jugić-Salkić (born 14 May 1980) is a Bosnian former top 100 tennis
Tennis is a List of racket sports, racket sport that is played either individually against a single opponent (singles (tennis), singles) or between two teams of ...
, Sorana Cîrstea,
Mona Barthel
Mona Barthel (born 11 July 1990) is a German tennis player.
On 18 March 2013, she reached her best singles ranking of world No. 23. On 14 September 2015, she peaked at No. 63 in the doubles rankings.
Barthel has won four singles and three double ...
, then lost to Agnieszka Radwańska. In
Dubai
Dubai (Help:IPA/English, /duːˈbaɪ/ Help:Pronunciation respelling key, ''doo-BYE''; Modern Standard Arabic, Modern Standard Arabic: ; Emirati Arabic, Emirati Arabic: , Romanization of Arabic, romanized: Help:IPA/English, /diˈbej/) is the Lis ...
, Wozniacki defeated Lucie Šafářová, Zheng Jie and Marion Bartoli to reach the semifinals where she lost to the eventual champion, Petra Kvitová. At the
Malaysian Open, she lost in the first round to
Wang Qiang. She then played in an exhibition match at the
BNP Paribas Showdown in Hong Kong. She was scheduled to play Li Na, but she had to withdraw due to injury. Instead Wozniacki played Li's replacement world No. 4 Agnieszka Radwańska and lost in straight sets.

At the
Indian Wells Open, she defeated Alizé Cornet, Elena Vesnina and Nadia Petrova, then received a walkover when the defending champion Victoria Azarenka withdrew due to a foot injury. In the semifinals, Wozniacki defeated Angelique Kerber to reach her first final of the year but lost the title match to Maria Sharapova. In her next tournament, the
Miami Open, Wozniacki made it to the third round where she lost to
Garbiñe Muguruza
Garbiñe Muguruza Blanco (; born 8 October 1993) is a Venezuelan-born Spanish former professional tennis player. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Asso ...
.
Wozniacki began the clay-court season by reaching the quarterfinals of the
Family Circle Cup
The Charleston Open, currently sponsored by Credit One, is a WTA Tour-affiliated professional tennis tournament for women, held every year since 1973. It is the oldest professional all-women's tournament in America with a $1,064,510 purse. The t ...
where she lost to
Stefanie Vögele
Stefanie Vögele (born 10 March 1990) is a Swiss professional tennis player. She achieved a career-high singles ranking of world No. 42 on 11 November 2013. Her highest WTA rankings, WTA ranking in doubles is 100, which she reached on 5 January ...
. Wozniacki lost in the first round to
Carla Suárez Navarro
Carla Suárez Navarro (; born 3 September 1988) is a Spanish former professional tennis player. A former top 10 singles player, she reached a career-high singles ranking of world No. 6 on 29 February 2016, and a best WTA doubles ranking of 11, o ...
in
Stuttgart
Stuttgart (; ; Swabian German, Swabian: ; Alemannic German, Alemannic: ; Italian language, Italian: ; ) is the capital city, capital and List of cities in Baden-Württemberg by population, largest city of the States of Germany, German state of ...
, to
Yaroslava Shvedova in
Madrid
Madrid ( ; ) is the capital and List of largest cities in Spain, most populous municipality of Spain. It has almost 3.5 million inhabitants and a Madrid metropolitan area, metropolitan area population of approximately 7 million. It i ...
, to Bojana Jovanovski in
Rome
Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...
, and to Zheng Jie in
Brussels
Brussels, officially the Brussels-Capital Region, (All text and all but one graphic show the English name as Brussels-Capital Region.) is a Communities, regions and language areas of Belgium#Regions, region of Belgium comprising #Municipalit ...
. At the
French Open
The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...
, Wozniacki defeated
Laura Robson in the first round, then lost again to Jovanovski in the second.
She began grass-court season at
Eastbourne
Eastbourne () is a town and seaside resort in East Sussex, on the south coast of England, east of Brighton and south of London. It is also a non-metropolitan district, local government district with Borough status in the United Kingdom, bor ...
where she reached semifinals with victories over Tamira Paszek, Laura Robson and Ekaterina Makarova but then lost to qualifier
Jamie Hampton. In the first round of
Wimbledon
Wimbledon most often refers to:
* Wimbledon, London, a district of southwest London
* Wimbledon Championships, the oldest tennis tournament in the world and one of the four Grand Slam championships
Wimbledon may also refer to:
Places London
* W ...
, Wozniacki beat
Estrella Cabeza Candela. In the second round, she faced Petra Cetkovská. In just the fourth game of the first set, with the score at 2–1 and going with serve, Wozniacki slipped and fell, injuring her ankle. She received treatment but was visibly struggling and went on to lose the match. Wozniacki was one of several players to slip and injure themselves, including
Jo-Wilfried Tsonga
Jo-Wilfried Tsonga (; born 17 April 1985) is a French former professional tennis player. He was ranked as high as world No. 5 by the Association of Tennis Professionals (ATP), which he achieved in February 2012. Tsonga won 18 singles titles on th ...
, Victoria Azarenka and Maria Sharapova. After the match, Wozniacki questioned whether the preparation for the tournament was the same as in previous years, adding: "I just know that it's just not really fun to be out there when you feel like you can't really push off on your foot."
Wozniacki's woeful season continued at the
Rogers Cup, where she fell in the second round to Sorana Cîrstea despite having double match point in the second set. She then reached the quarterfinals of the
Western & Southern Open, beating Peng Shuai, Monica Niculescu and Petra Kvitová, but was defeated by Victoria Azarenka for the first time since 2009. Wozniacki then played at the
New Haven Open at Yale
The Connecticut Open was a professional tennis tournament played on outdoor hard courts under various names and in various venues from 1948 until 2019.
It was most recently a Women's Tennis Association (WTA) Premier Tournament on the WTA Tour, ...
. She reached the semifinals beating Peng via retirement,
Karin Knapp and
Sloane Stephens
Sloane Stephens (born March 20, 1993) is an American professional tennis player. She has achieved a career-best ranking of world No. 3 by the Women's Tennis Association, WTA. Stephens has won eight WTA Tour-level singles titles, including the 2 ...
, then lost to
Simona Halep
Simona Halep (; born 27 September 1991) is a Romanian former professional tennis player. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Association (WTA) for 64 w ...
in straight sets. At the
US Open, Wozniacki defeated
Duan Yingying and Chanelle Scheepers in straight sets, then lost to qualifier Camila Giorgi in the third round. This marked the first time since 2008 where Wozniacki had failed to reach the quarterfinals or better at one of the four Grand Slam tournaments.
During the Asian swing, she advanced to the semifinals of the
Pan Pacific Open, defeating Flavia Pennetta,
Magdaléna Rybáriková
Magdaléna Rybáriková (; born 4 October 1988) is a Slovak former professional tennis player. In her career, she won four singles titles and one doubles title on the WTA Tour. Rybáriková reached the semifinals of the 2017 Wimbledon Champion ...
and Lucie Šafářová en route, then losing to Angelique Kerber. Her next tournament was in
Beijing
Beijing, Chinese postal romanization, previously romanized as Peking, is the capital city of China. With more than 22 million residents, it is the world's List of national capitals by population, most populous national capital city as well as ...
where she was seeded sixth and where she received a bye into the second round along with the other three Tokyo semifinalists. Wozniacki reached the quarterfinals with wins over Monica Niculescu and Sloane Stephens, but lost to the world No. 1 and eventual champion Serena Williams.
Wozniacki's final event for the year was the
Luxembourg Open, where she was top-seeded. She ended her two-match losing streak against Bojana Jovanovski by defeating the Serb in a three set quarterfinal. She then beat
Wimbledon
Wimbledon most often refers to:
* Wimbledon, London, a district of southwest London
* Wimbledon Championships, the oldest tennis tournament in the world and one of the four Grand Slam championships
Wimbledon may also refer to:
Places London
* W ...
finalist Sabine Lisicki to reach the final and defeated
Annika Beck
Annika Beck (; born 16 February 1994) is a German former professional tennis player. She started playing tennis at the age of four when introduced to the game by her parents. A baseliner whose favorite shot is forehand, and favorite surface is ...
of Germany in straight sets to win her first and only title of the year. Despite the victory, Wozniacki failed to qualify for the year-ending
Tour Championships in Istanbul as Angelique Kerber secured the final spot with her win at the
WTA International
The WTA International tournaments was a category for tennis tournaments of the Women's Tennis Association from the 2009 WTA Tour until 2020, which replaced the previous Tier III and Tier IV categories. As of 2021 these events have been reclassifie ...
tournament in Linz, Austria that same week. In winning Luxembourg, however, Wozniacki qualified for the
Tournament of Champions in Sofia but ultimately chose not to participate. She finished the year ranked world No. 10.
2014: Resurgence and second major final
During the off season, Wozniacki switched her racquet make from Yonex to Babolat. She was scheduled to start the season in
Brisbane
Brisbane ( ; ) is the List of Australian capital cities, capital and largest city of the States and territories of Australia, state of Queensland and the list of cities in Australia by population, third-most populous city in Australia, with a ...
but withdrew due to a right shoulder injury and instead began her season in
Sydney
Sydney is the capital city of the States and territories of Australia, state of New South Wales and the List of cities in Australia by population, most populous city in Australia. Located on Australia's east coast, the metropolis surrounds Syd ...
where she defeated Julia Görges in three sets, then lost to Lucie Šafářová in the second round. At the
Australian Open
The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
, she lost to Garbiñe Muguruza in the third round, in three sets.
Wozniacki competed at the
Qatar Ladies Open where she was seeded eighth and where she lost to Yanina Wickmayer. The following week, she reached the semifinals in
Dubai
Dubai (Help:IPA/English, /duːˈbaɪ/ Help:Pronunciation respelling key, ''doo-BYE''; Modern Standard Arabic, Modern Standard Arabic: ; Emirati Arabic, Emirati Arabic: , Romanization of Arabic, romanized: Help:IPA/English, /diˈbej/) is the Lis ...
, defeating Sabine Lisicki, Annika Beck and Sorana Cîrstea before falling to the eventual champion Venus Williams.
Her next tournament was the
Indian Wells Open where she was defending runner-up points. She reached the fourth round following wins over Bojana Jovanovski and Yaroslava Shvedova, then lost to Jelena Janković, causing her to fall to world No. 18, her lowest ranking since 2010. She recovered by reaching the quarterfinals of the
Miami Open, recording wins over
Monica Puig, Sloane Stephens and Varvara Lepchenko before losing to Li Na. Wozniacki made her debut at the
Monterry Open, where she defeated
CoCo Vandeweghe,
Kristina Mladenovic
Kristina "Kiki" Mladenovic (born 14 May 1993) is a French professional tennis player and a former List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles. Her best singles ranking is world No. 10.
She is a nine-time Grand Slam ...
and
Karolína Plíšková
Karolína Plíšková (; born 21 March 1992) is a Czech professional tennis player. She has been ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA), holding the position for a total of eight weeks, and has been ...
en route to the semifinals, then lost to the eventual champion Ana Ivanovic.
Her first tournament of the clay-court season was scheduled to be the
Stuttgart Grand Prix, but she was forced to withdraw due to a left wrist injury. Instead, her first event on clay was the
Madrid Open where she reached the second round, beating Ekaterina Makarova and then losing to Roberta Vinci when sustaining a knee injury. This same injury caused her to withdraw from the following week's
Internazionali d'Italia in Rome. At the
French Open
The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...
, Wozniacki was upset by Yanina Wickmayer in the first round in three sets.
Wozniacki enjoyed a stellar grass-court season during which she made the semifinals of the
Eastbourne International
The Eastbourne Open (also known as Eastbourne International, formerly Rothesay) is a tennis tournament on the WTA Tour and the ATP Tour held at the Devonshire Park Lawn Tennis Club, Eastbourne, United Kingdom. Held since 1974, it is classified as ...
with wins over Samantha Stosur, Sloane Stephens and Camila Giorgi, then lost to the eventual finalist Angelique Kerber. At the
Wimbledon Championships
The Wimbledon Championships, commonly called Wimbledon, is a tennis tournament organised by the All England Lawn Tennis and Croquet Club in collaboration with the Lawn Tennis Association annually in Wimbledon, London. It is chronologically the ...
, Wozniacki reached the fourth round for the fourth time in her career with straight-sets wins over Shahar Pe'er,
Naomi Broady
Naomi Broady ( ; born 28 February 1990) is a British former tennis player.
She won one WTA Tour doubles title, as well as nine singles titles and 20 doubles titles on the ITF Women's Circuit. On 7 March 2016, she reached her best singles ranki ...
and
Ana Konjuh, but ultimately lost to
Barbora Záhlavová-Strýcová.
Wozniacki won her first title of the year at the
İstanbul Cup. She defeated
Belinda Bencic
Belinda Bencic (; born 10 March 1997) is a Swiss professional tennis player. She has a career-high WTA rankings, ranking of world No. 4 which she achieved in February 2020. Bencic has won nine career singles titles, including Tennis at the 2020 ...
, Karin Knapp, Karolína Plíšková, Kristina Mladenovic, and Roberta Vinci to secure the title.
Her first tournament of the
2014 US Open Series was
Rogers Cup. She progressed to the quarterfinals with straight-set wins over Daniela Hantuchová, Klára Koukalová and
Shelby Rogers, then lost to top seed Serena Williams. At the
Western & Southern Open, she beat Magdaléna Rybáriková and
Zhang Shuai
Zhang Shuai ( zh , s = 张帅 , p = Zhāng Shuài ; ; born 21 January 1989) is a Chinese professional tennis player. She has a career-high doubles WTA rankings, ranking of world No. 2, achieved in July 2022 and a singles ranking of No. 22 re ...
, Angelique Kerber, and Agnieszka Radwańska. In the semifinals, she fell in three sets to the eventual champion Williams.
Wozniacki's next tournament was the
US Open, where she was the tenth seed. She faced Magdaléna Rybáriková in her opening match, progressing when her opponent was forced to retire early in the third set. She then beat qualifier
Aliaksandra Sasnovich
Aliaksandra Aliaksandraŭna Sasnovich (born 22 March 1994) is a Belarusian professional tennis player. She achieved her best singles ranking of world No. 29 on 19 September 2022, and peaked at No. 39 in the WTA doubles rankings on 23 August 2021 ...
in the second round in straight sets. In the third round she easily took care of 18th seed Andrea Petkovic in straight sets for her first win over a seeded player at a grand slam since 2012. In the fourth round, Wozniacki came up against former world No. 1 and former champion
Maria Sharapova
Maria Yuryevna Sharapova (, ; born 19 April 1987) is a Russian former professional tennis player. She was ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA) for 21 weeks. Sharapova won 36 WTA Tour-level sin ...
, defeating her in three sets to progress to the quarterfinals of a grand slam for the first time since the
2012 Australian Open. In the quarterfinals, she dropped just one game to breeze past Sara Errani. In the semifinals, Wozniacki came up against unseeded Peng Shuai. Wozniacki was up a set when her opponent was forced to retire due to a severe heat-related illness, allowing Wozniacki to advance to her second Grand Slam final, and her first since the
2009 US Open. In the final, Wozniacki came up against two-time defending champion Serena Williams for the third time in four weeks, again falling to the world No. 1. Due to her run to the final, Wozniacki returned to the top 10 for the first time since February.
During the fall, she competed at the
Pan Pacific Open. As the second seed, she received a bye into the second round where she faced Australian qualifier
Jarmila Gajdošová
Jarmila Wolfe (née Gajdošová, formerly Groth; born 26 April 1987) is a Slovak-Australian former tennis player.
In her career, she won two singles titles and one doubles title on the WTA Tour, as well as 14 singles and ten doubles titles on ...
. Wozniacki rallied from a set down to prevail. In the quarterfinals, she faced Carla Suárez Navarro, whom she easily defeated to progress to the semifinals. In a grueling match against unseeded Spaniard Garbiñe Muguruza whom she had never beaten, Wozniacki won in three sets to set up a clash with Ana Ivanovic. In her third final of the year, Wozniacki fell to the Serbian in straight sets. Wozniacki's next tournament was the
Wuhan Open
The Wuhan Open (currently sponsored by Dongfeng Voyah) is a WTA 1000 tennis tournament held in Wuhan, Hubei Province, China and organized for female professional tennis players. It is one of the WTA 1000 tournaments on the WTA Tour and made its ...
. As the eighth seed, she received a bye into the second round, where she defeated Carla Suárez Navarro in three sets. Wozniacki then beat
Casey Dellacqua
Casey Dellacqua ( ; born 11 February 1985) is an Australian former professional tennis player and current commentator. Her best singles results on the WTA Tour have been semifinal appearances at the 2012 Texas Tennis Open and 2014 Birmingham ...
and
Timea Bacsinszky
Timea Bacsinszky (; born 8 June 1989) is a Swiss former professional tennis player. A former top ten singles player, Bacsinszky reached a career-high singles ranking of world No. 9, on 16 May 2016. She won four singles and five doubles titles o ...
to reach the semifinals but then lost to
Eugenie Bouchard
Eugenie "Genie" Bouchard (; , ; born February 25, 1994) is a Canadian professional tennis and pickleball player. At the 2014 Wimbledon Championships – Women's singles, 2014 Wimbledon Championships, she became the first Canadian-born player repr ...
in straight sets.
The following week, she competed at the
China Open where she received a bye into the second round due to being a semifinalist in
Wuhan
Wuhan; is the capital of Hubei, China. With a population of over eleven million, it is the most populous city in Hubei and the List of cities in China by population, eighth-most-populous city in China. It is also one of the nine National cent ...
. She was eliminated by Samantha Stosur in her opening match of the tournament. It was then announced on 2 October that Wozniacki had qualified for the
WTA Finals.
At the WTA Finals, Wozniacki was drawn into the White Group alongside Sharapova, Kvitová and Radwańska. In her first match she beat Maria Sharapova in three sets. She then went on to beat Agnieszka Radwańska in straight sets. With Sharapova winning in three sets against Radwańska, Wozniacki qualified into the semifinals. She then beat Kvitová in straight sets going undefeated in her round robin matches. She would lose to Serena Williams in the semifinals in three sets despite serving for the match in the third set and leading 4–1 in the third set tiebreak. She finished the year ranked at No. 8.
Wozniacki then decided to run the New York City Marathon in November 2014. She recorded a time of 3 hours, 26 minutes and 33 seconds.
She claimed that the running training was positive for her and contributed to her good performances at the US Open and WTA Finals.
2015: Out of top 10 and an unsatisfied year-end ranking
Wozniacki started her season at the
Auckland Open seeded as No. 1 and advanced to the final, then lost to Venus Williams in three sets. Despite being seeded eighth at the
Australian Open
The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
, Wozniacki was unfortunate to draw fellow former world number one and two-time champion Victoria Azarenka in the second round, and was defeated in straight sets. After the tournament, she climbed back up to No. 5. Wozniacki then competed at the
Dubai Tennis Championships
The Dubai Tennis Championships (also known as the Dubai Duty Free Tennis Championships for sponsorship reasons) (formerly known for sponsorship reasons as the ''Barclays Dubai Tennis Championships'' and the ''Dubai Duty Free Men's and Women's Champ ...
where she made it all the way to the semifinals, then lost to eventual champion Simona Halep in three sets. Wozniacki's next tournament was the
Qatar Open where she was seeded second. However, she lost once again to fellow former No. 1 Victoria Azarenka in the quarterfinals in straight sets, winning just four games. She rebounded at the
Malaysian Open, winning the title by defeating
Alexandra Dulgheru
Alexandra Dulgheru (; born 30 May 1989) is a former professional tennis player from Romania. On 11 April 2011, she achieved a career-high singles ranking of world No. 26. Her best ranking in doubles is No. 41, which she reached on 4 July 2011.
...
in the final in three sets.
Wozniacki's next tournament was the
Indian Wells Open where she was seeded fourth. In the second round, she beat
Ons Jabeur, then lost in the third round to Belinda Bencic in straight sets. She then competed at the
Miami Open beating
Madison Brengle in the second round and Kaia Kanepi in the third round. She lost to Venus Williams in the fourth round in straight sets.
Wozniacki started her clay-court season in
Stuttgart
Stuttgart (; ; Swabian German, Swabian: ; Alemannic German, Alemannic: ; Italian language, Italian: ; ) is the capital city, capital and List of cities in Baden-Württemberg by population, largest city of the States of Germany, German state of ...
where she was seeded fourth. In the second round, she beat Lucie Šafářová in straight sets. In the quarterfinals, she dropped just three games against Carla Suárez Navarro to advance to the semifinals. In the semifinals, she beat Simona Halep in a three-set thriller to reach her first clay court final since 2011. She lost to Angelique Kerber in the final in three sets, despite serving for the match in the third set. Wozniacki's next tournament was the
Mutua Madrid Open where she made it to the quarterfinals for the first time since 2009 beating
Jarmila Gajdošová
Jarmila Wolfe (née Gajdošová, formerly Groth; born 26 April 1987) is a Slovak-Australian former tennis player.
In her career, she won two singles titles and one doubles title on the WTA Tour, as well as 14 singles and ten doubles titles on ...
, Christina McHale and Agnieszka Radwańska. She lost in the quarterfinals to Maria Sharapova in three sets. Wozniacki's next tournament was the
Italian Open. She lost in the second round to Victoria Azarenka for the third time in straight sets. Wozniacki then played at the
French Open
The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...
as the fifth seed. She beat Karin Knapp in straight sets, then lost to Julia Görges in the second round in straight sets.
At the
Eastbourne International
The Eastbourne Open (also known as Eastbourne International, formerly Rothesay) is a tennis tournament on the WTA Tour and the ATP Tour held at the Devonshire Park Lawn Tennis Club, Eastbourne, United Kingdom. Held since 1974, it is classified as ...
, she beat Jarmila Gajdošová in straight sets and Svetlana Kuznetsova in three sets to advance to the quarterfinals. She beat Andrea Petkovic in straight sets to advance to the semifinals where she faced Belinda Bencic. She retired from the match due to a back injury after losing the first three games. Wozniacki then played at
Wimbledon
Wimbledon most often refers to:
* Wimbledon, London, a district of southwest London
* Wimbledon Championships, the oldest tennis tournament in the world and one of the four Grand Slam championships
Wimbledon may also refer to:
Places London
* W ...
as the fifth seed. She beat
Zheng Saisai
Zheng Saisai or Zheng Sai-Sai (; born 5 February 1994) is a Chinese tennis player. She has a career-high singles ranking of world No. 34, achieved on 2 March 2020, and a doubles ranking of No. 15, achieved on 11 July 2016. In her career, she wo ...
,
Denisa Allertová, and Camila Giorgi to advance to the fourth round and then lost to eventual finalist Garbiñe Muguruza, in straight sets. Despite the loss, Wozniacki climbed back up to No. 4.
Her summer hardcourt season got off to a slow start due to an ankle injury. This injury caused her to lose early at
Stanford
Leland Stanford Junior University, commonly referred to as Stanford University, is a private research university in Stanford, California, United States. It was founded in 1885 by railroad magnate Leland Stanford (the eighth governor of and th ...
,
Toronto
Toronto ( , locally pronounced or ) is the List of the largest municipalities in Canada by population, most populous city in Canada. It is the capital city of the Provinces and territories of Canada, Canadian province of Ontario. With a p ...
and
Cincinnati
Cincinnati ( ; colloquially nicknamed Cincy) is a city in Hamilton County, Ohio, United States, and its county seat. Settled in 1788, the city is located on the northern side of the confluence of the Licking River (Kentucky), Licking and Ohio Ri ...
to
Varvara Lepchenko,
Belinda Bencic
Belinda Bencic (; born 10 March 1997) is a Swiss professional tennis player. She has a career-high WTA rankings, ranking of world No. 4 which she achieved in February 2020. Bencic has won nine career singles titles, including Tennis at the 2020 ...
and Victoria Azarenka, respectively. Wozniacki then played at the
Connecticut Open. She finally picked up her first win by crushing
Alison Riske
Alison Riske-Amritraj (née Riske; born July 3, 1990) is an inactive American tennis player. She reached her career-high singles ranking of world No. 18 in November 2019 and won her first WTA Tour title in October 2014, at the Tianjin Open.
S ...
in the first round. She then beat Roberta Vinci in three sets, saving three match points in the third-set tiebreak, to advance to the quarterfinals. She breezed past Caroline Garcia, then lost in the semifinals to Petra Kvitová in straight sets. Wozniacki then played at the
US Open as the fourth seed. She easily beat
Jamie Loeb in her opening match to advance to the second round where she was upset by Petra Cetkovská in a close three-set match despite having four match points.
Wozniacki began her Asian hardcourt swing at the
Pan Pacific Open. As the top seed, she received a bye in to the second round where she easily beat
Ana Konjuh. She then defeated Angelique Kerber in three sets in the quarterfinals. In the semifinals, she lost to Belinda Bencic for the fourth straight time in straight sets. Wozniacki's next tournament was the
Wuhan Open
The Wuhan Open (currently sponsored by Dongfeng Voyah) is a WTA 1000 tennis tournament held in Wuhan, Hubei Province, China and organized for female professional tennis players. It is one of the WTA 1000 tournaments on the WTA Tour and made its ...
. She lost to
Anna Karolína Schmiedlová in the second round in three sets, despite being up a set and a break. Wozniacki's next tournament was the
China Open. She beat Bojana Jovanovski in the first round, and won ten games in a row to beat
Wang Qiang to advance to the third round. She lost to Angelique Kerber in straight sets. The loss ended Wozniacki's chances to qualify for the
WTA Finals.
Her next tournament was the
Ladies Linz where she beat
Mirjana Lučić-Baroni
Mirjana Lučić-Baroni (; ; born 9 March 1982) is a Croatian inactive professional tennis player. She enjoyed a meteoric rise on the WTA Tour in the late 1990s, during which she set various "youngest-ever" records. She captured the women's double ...
in three sets, then lost to
Kirsten Flipkens
Kirsten "Flipper" Flipkens (; born 10 January 1986) is a Belgian tennis coach and a former professional player. She reached a career-high ranking of No. 13 by the Women's Tennis Association (WTA). Flipkens has won one singles title on the WTA T ...
in the second round in straight sets. She failed to qualify for the WTA Finals, but did qualify for the
Elite Trophy where she was drawn into Group D alongside Roberta Vinci and Svetlana Kuznetsova. After retiring in her first match against Svetlana Kuznetsova, Wozniacki withdrew from the tournament. She finished the year ranked at No. 17, her worst year-end ranking since 2007.
2016: Early injuries and revival
Wozniacki began her 2016 season at the
Auckland Open, where she was defending finalist points. She beat
Danka Kovinić, Christina McHale, and Alexandra Dulgheru to advance to the semifinals where she lost to eventual champion Sloane Stephens in straight sets. Wozniacki's next tournament was the
Australian Open
The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
where she lost to
Yulia Putintseva
Yulia Antonovna Putintseva (, ; born 7 January 1995) is a Russian-born Kazakhstani professional tennis player. She achieved a career-high singles ranking of world No. 20 on 27 January 2025 and a doubles ranking of No. 76 on 17 March 2025.
Puti ...
in the first round in three sets, marking her worst performance at the tournament.
Her next tournament was the
St. Petersburg Ladies' Trophy. She lost to Dominika Cibulková in the second round in straight sets. Wozniacki next played the Qatar Ladies Open for which she needed nine match points to beat Ana Konjuh in the first round. She was at one point up by a double break in the third set. In the second round, she faced
Daria Gavrilova
Daria Saville (née Gavrilova; born 5 March 1994) is a Russian-born Australian professional tennis player. She competed under her maiden name until her marriage to Luke Saville in 2021. On 28 August 2017, she reached her best singles rank ...
which she won in straight sets. Wozniacki then played Elena Vesnina in the third round, she fell in a grueling match. Wozniacki played in the
Monterrey Open instead of defending her title in Kuala Lumpur. She defeated
Olga Govortsova
Olga Alekseyevna Govortsova ( (Volha Alyakseyeuna Havartsova); ; born 23 August 1988) is a Belarusian professional tennis player. On 23 June 2008, she achieved a career-high singles ranking of world No. 35. On 29 August 2011, she peaked at No. 2 ...
in the first round and Mirjana Lučić-Baroni in the second round; however, she fell in the quarterfinals to the eventual winner Heather Watson. Caroline then played at the BNP Paribas Open and fell in the second round to Zhang Shuai. This match marked the longest match so far in 2016, at 3 hours and 24 minutes. Then in the
Miami Open Wozniacki made a promising start, defeating
Vania King
Vania King (born February 3, 1989) is a retired American tennis player. A former top-10 doubles player, King won both the Wimbledon and US Open women's doubles titles in 2010 with partner Yaroslava Shvedova, with whom she also reached the fi ...
; however, she fell to 12th seed Elina Svitolina.
Wozniacki was scheduled to play many clay court tournaments, but she injured her ankle during a practice, which put her out for all of the clay-court season. This break saw Wozniacki fall through the rankings from 22 down to 34, the lowest since May 2008. She withdrew from the
French Open
The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...
because her ankle was not 100%.
Wozniacki played in Nottingham, her first tournament since the Miami Open in March and her first tournament after hiring her new coach
David Kotyza. She won her first match in ten weeks defeating
Çağla Büyükakçay, but falling in yet another three-set match to
Anett Kontaveit in the second round. In her last tournament leading up to Wimbledon, Wozniacki played the
Eastbourne International
The Eastbourne Open (also known as Eastbourne International, formerly Rothesay) is a tennis tournament on the WTA Tour and the ATP Tour held at the Devonshire Park Lawn Tennis Club, Eastbourne, United Kingdom. Held since 1974, it is classified as ...
. She showed signs of improvement from her loss of form and injury, dismissing Alizé Cornet and seventh seed Sam Stosur and dropping only seven games in the two matches, then lost in a three-set match to qualifier Monica Puig. In
Wimbledon
Wimbledon most often refers to:
* Wimbledon, London, a district of southwest London
* Wimbledon Championships, the oldest tennis tournament in the world and one of the four Grand Slam championships
Wimbledon may also refer to:
Places London
* W ...
, unseeded the first time since 2008 Australian Open, she lost to Svetlana Kuznetsova in the first round, resulting in her falling out of the top 50 for the first time since February 2008.

Wozniacki began her US hardcourt season playing the
Washington Open. She went on to beat
Hiroko Kuwata in the first round and retired in her second-round clash with Sam Stosur despite being up a set 7–5 a sharp pain in her left arm forced her to retire. This injury also took her out of The Rogers Cup. She then played the
Summer Olympic Games
The Summer Olympic Games, also known as the Summer Olympics or the Games of the Olympiad, is a major international multi-sport event normally held once every four years. The 1896 Summer Olympics, inaugural Games took place in 1896 in Athens, ...
in Rio at which she was Danish flag bearer. Dropping four games, she beat
Lucie Hradecká
Lucie Hradecká (; born 21 May 1985) is a Czech former professional tennis player. A three-time Grand Slam doubles champion and 26-time WTA Tour doubles titlist, she reached her career-high doubles ranking of world No. 4 in October 2012. She w ...
but fell to Petra Kvitová in the second round. She failed to win a match in the
Connecticut Open as she lost in the first round to young Latvian
Jelena Ostapenko. However, Wozniacki's year turned around at the
US Open. She slid past
Taylor Townsend in three sets, then upset Svetlana Kuznetsova in round two. She then beat Monica Niculescu in two sets to reach the fourth round, in which she upended
Madison Keys
Madison Keys (born February 17, 1995) is an American professional tennis player. She has been WTA rankings, ranked as high as world No. 5 in women's singles by the Women's Tennis Association, WTA. Keys has won ten WTA Tour-level career singles ...
in two sets to reach the quarterfinals and then beat unseeded
Anastasija Sevastova to enter the semifinals. Wozniacki lost the semifinal to then-new No. 1, Angelique Kerber, in two sets, and resulting at the back of the top 30 for the first time since April of this year.
She moved on to the
Pan Pacific Open. In the first round, Wozniacki defeated Belinda Bencic, who had defeated her the previous year, in three sets. In the second round, she defeated fourth seed Carla Suárez Navarro, then beat qualifier
Magda Linette in straight sets. In the semifinals, Wozniacki defeated defending champion Agnieszka Radwańska, which sent her off to her first final since April of the previous year. In the final, she defeated Japanese player
Naomi Osaka
is a Japanese professional tennis player. She has been ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Association, WTA for 25 weeks, the first Asian player to hold the ...
to win her 24th WTA Tour title, and her first title since March 2015. This was also Wozniacki's first Premier-level title since 2012.
Wozniacki continued the Asian swing at the
Wuhan Open
The Wuhan Open (currently sponsored by Dongfeng Voyah) is a WTA 1000 tennis tournament held in Wuhan, Hubei Province, China and organized for female professional tennis players. It is one of the WTA 1000 tournaments on the WTA Tour and made its ...
. There, she had a good start, defeating Samantha Stosur in the first round. In the third round, Wozniacki faced Agnieszka Radwańska again, and this time, Radwańska came out on top. Wozniacki then competed at the
China Open. She cruised past her first two matches against CoCo Vandeweghe and Roberta Vinci before going head-to-head with Radwańska for the third time in three weeks. Radwańska emerged victorious again, defeating Wozniacki in straight sets.
Wozniacki won her second title of the season and 25th title overall at the Hong Kong Open. She defeated Zheng Saisai, Heather Watson, Wang Qiang, Jelena Janković, and Kristina Mladenovic. This was the first time since 2012 that Wozniacki had won two WTA Tour titles in a single season. With the win, she returned to the top 20.
Wozniacki ended the season with a run at the
Luxembourg Open. The No. 2 seed had an easy first-round win against Madison Brengle, and survived a second-round encounter against Sabine Lisicki. She then was forced to retire in the quarterfinals due to sickness. Wozniacki did not play at the
WTA Elite Trophy and ended her topsy-turvy season ranked No. 19 (having been as low as No. 74).
2017: WTA Finals crown and return to top 3
Wozniacki began the year at the
Auckland Open once again. This time, she was the No. 3 seed. She started out strong, breezing past
Nicole Gibbs
Nicole Gibbs (born March 3, 1993) is an American former professional tennis player.
She won seven singles and five doubles titles on the ITF Women's Circuit. On 25 July 2016, she reached her best singles ranking of world No. 68. On 19 September ...
and Varvara Lepchenko, then lost in the quarterfinals to Julia Görges in three sets, despite being up a set and a break. At the
Sydney International
The Sydney International (formerly known as the Championship of New South Wales and New South Wales Open, with various title sponsors), formerly sponsored as the Apia International Sydney from 2012 to 2017, was a professional tennis tournament ...
, Wozniacki was seeded tenth. She played some solid tennis against Olympic gold medallist Monica Puig, winning in three sets. Wozniacki then defeated Yulia Putintseva in straight sets in a rematch of their 2016 Australian Open first-round clash. In the quarterfinals, she was defeated by Barbora Strýcová in three close sets, despite twice being up a break in the final set.
Wozniacki was seeded 17th at the
Australian Open
The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
. She reached the third round, defeating
Arina Rodionova
Arina Ivanovna Rodionova (; born 15 December 1989) is a Russian-born Australian professional tennis player. On 5 February 2024, she reached a career-high singles ranking of world No. 97. On 27 July 2015, she peaked at No. 41 in the doubles ra ...
and Donna Vekić, but lost to Johanna Konta in straight sets.
Wozniacki played at the
Qatar Ladies Open sliding past
Kiki Bertens
Kiki Bertens (; born 10 December 1991) is a Dutch former professional tennis player. Her career-high WTA rankings#Current rankings, singles ranking was world No. 4, which she reached on 13 May 2019, becoming the highest-ranked Dutch female playe ...
and Agnieszka Radwańska in the first two rounds in straight sets. She then saved two set points in the first set to beat
Lauren Davis
Lauren Davis (born October 9, 1993) is an American professional tennis player. Known for her aggressive backhand, speed, and clay-court strength, she has won two singles titles on the WTA Tour and reached a career-high singles WTA rankings, ran ...
, before dispatching Monica Puig to reach the final. There she fell to the in-form Karolína Plíšková. From there she played at the
Dubai Championships, also making the final there by beating
Daria Kasatkina
Daria Sergeyevna Kasatkina (born 7 May 1997) is a Russian-born Australian professional tennis player. She has been ranked as high as world No. 8 in women's singles by the Women's Tennis Association, WTA, achieved in October 2022. Kasatkina ha ...
,
Viktorija Golubic
Viktorija Golubic (; ; born 16 October 1992) is a Swiss professional tennis player. On 28 February 2022, she reached her career-high singles WTA ranking of No. 35. On 17 April 2023, she peaked at No. 61 in the doubles rankings. She is the curre ...
,
Kateryna Bondarenko,
CiCi Bellis and Anastasija Sevastova, respectively, before losing to Elina Svitolina in straight sets in the final. Despite runner-up finishes, Wozniacki rose back up to No. 14.

At the
Indian Wells Open, Wozniacki beat Magda Linette,
Kateřina Siniaková
Kateřina Siniaková (; born 10 May 1996) is a Czech professional tennis player. She is the current List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles. She also has a best singles WTA rankings, ranking of No. 27 by the W ...
and Madison Keys, not losing a set, to advance to the quarterfinals where she lost to Kristina Mladenovic. At the
Miami Open, she beat Varvara Lepchenko and Sorana Cîrstea in straight sets and then advanced to the quarterfinals with a retirement from Garbiñe Muguruza. In the quarterfinals, she beat Lucie Šafářová in straight sets and in the semifinals, avenged her Doha loss to Karolína Plíšková by beating her in three sets to advance to her first ever final in Miami and her first Premier Mandatory final since 2013. She lost in straight sets to
Johanna Konta
Johanna Konta (born 17 May 1991) is a British-Australian former professional tennis player. Konta won four singles titles on the WTA Tour, along with eleven titles in singles and four in doubles on the ITF Women's Circuit. She was British No. ...
.
Wozniacki began her clay court season at the
Charleston Open
The Charleston Open, currently sponsored by Credit One, is a WTA Tour-affiliated professional tennis tournament for women, held every year since 1973. It is the oldest professional all-women's tournament in America with a $1,064,510 purse. The t ...
. She made it to the quarterfinals with straight-set wins over
Annika Beck
Annika Beck (; born 16 February 1994) is a German former professional tennis player. She started playing tennis at the age of four when introduced to the game by her parents. A baseliner whose favorite shot is forehand, and favorite surface is ...
and
Anastasia Rodionova
Anastasia Ivanovna Rodionova (; born 12 May 1982) is a Russian-born Australian former professional tennis player.
Rodionova has won 11 doubles titles on the WTA Tour, as well as eight singles and 13 doubles titles on the ITF Circuit. On 16 Au ...
. There she lost to Jeļena Ostapenko in straight sets. She next played at the
Prague Open In tennis, Prague Open may refer to:
* Prague Open (1987–1999)
* 1992 HTC Prague Open, HTC Prague Open, held only in 1992
* BVV Prague Open (1993–1994)
* I.ČLTK Prague Open, Advantage Cars Prague Open
* WTA Prague Open, Livesport Prague Open
* ...
, beat
Misaki Doi in the first round in straight sets, and lost to Ostapenko again in three sets despite having match point. Wozniacki next played at the
Madrid Open. In the first round, she beat Monica Niculescu in three sets, then lost to Carla Suárez Navarro in three sets. In
Strasbourg
Strasbourg ( , ; ; ) is the Prefectures in France, prefecture and largest city of the Grand Est Regions of France, region of Geography of France, eastern France, in the historic region of Alsace. It is the prefecture of the Bas-Rhin Departmen ...
, Wozniacki retired from her first match against
Shelby Rogers. Wozniacki then played at the
French Open
The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...
as the 11th seed. She beat
Jaimee Fourlis in the first round in three sets, then beat
Françoise Abanda without the loss of a game. In the third round, she beat CiCi Bellis, in three sets, and then went on to beat former champion Svetlana Kuznetsova, in three sets, to advance to the quarterfinals for the first time since 2010. She lost to eventual champion Jeļena Ostapenko for the third time in three sets.
Wozniacki began her grass-court season at the
Eastbourne International
The Eastbourne Open (also known as Eastbourne International, formerly Rothesay) is a tennis tournament on the WTA Tour and the ATP Tour held at the Devonshire Park Lawn Tennis Club, Eastbourne, United Kingdom. Held since 1974, it is classified as ...
with straight-set wins over Naomi Osaka and Elena Vesnina. In the quarterfinals, she came from a set and a double break down to beat Simona Halep and proceeded to beat Heather Watson in three sets to advance to her fourth final of the year where she lost to Karolína Plíšková in straight sets. She then played at
Wimbledon
Wimbledon most often refers to:
* Wimbledon, London, a district of southwest London
* Wimbledon Championships, the oldest tennis tournament in the world and one of the four Grand Slam championships
Wimbledon may also refer to:
Places London
* W ...
as the fifth seed. She beat
Tímea Babos
Tímea Babos (; born 10 May 1993) is a Hungarian professional tennis player who is a former List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles.
She has won three WTA Tour titles in singles and 27 in doubles. Babos is a f ...
in three sets, recovering from a break down and grass court specialist
Tsvetana Pironkova
Tsvetana Kirilova Pironkova ( ; born 13 September 1987) is a Bulgarians, Bulgarian former tennis player. Considered to be one of the best grass court players of her generation, she has been noted for her "cerebral" skills on the surface, reachi ...
in straight sets. She then beat
Anett Kontaveit in a come-from-behind three-set win which saw Kontaveit fail to serve for the match twice to advance to the fourth round for the sixth time. She lost to CoCo Vandeweghe in straight sets.
Wozniacki competed in the
Swedish Open
The Swedish Open is a professional tennis tournament held in Båstad, Sweden. It is played
on outdoor clay courts in July.
The men's event (sponsored by Skistar) is an ATP Tour 250 tournament on the ATP Tour.
The women's event (sponsored by ...
and she made her fifth final of the year, beating
Pauline Parmentier, Viktorija Golubic, Kateryna Kozlova and
Elise Mertens
Elise Mertens (; born 17 November 1995) is a Belgian professional tennis player. She became List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles on 10 May 2021, the third Belgian to hold the top ranking in either singles or ...
before falling to Kateřina Siniaková in the final. She began her hardcourt season in
Rogers Cup in Toronto. Here she won her first ever match in Toronto defeating
Ekaterina Alexandrova later in the quarterfinals she defeated the current world No. 1 for the first time, overcoming Karolina Plíšková in three sets. Wozniacki eventually made her sixth final of 2017 yet again falling at this stage, this time to Elina Svitolina. This tipped Wozniacki back into the top 5. She then competed in the
Cincinnati Open defeating Elena Vesnina and
Ashleigh Barty
Ashleigh Jacinta Barty (born 24 April 1996) is an Australian former professional tennis player and cricketer. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Assoc ...
, before falling in the quarterfinals to world No. 1, Karolina Plíšková. At the
US Open, she defeated
Mihaela Buzărnescu
Mihaela Buzărnescu (born 4 May 1988) is a Romanian tennis player.
She has a career-high WTA singles ranking of No. 20, achieved on 6 August 2018. Her best doubles ranking of world No. 24, she reached on 22 October 2018. She won one singles tit ...
, then lost to Ekaterina Makarova in the second round.
She then played at the
Pan Pacific Open, where she defended her title by defeating Shelby Rogers, Dominika Cibulková, Garbiñe Muguruza and Anastasia Pavlyuchenkova. At the Wuhan Open, she lost her opening match to
Maria Sakkari
Maria Sakkari (, ; born 25 July 1995) is a Greek professional tennis player. She has been ranked as high as world No. 3 by the Women's Tennis Association, WTA, which she first achieved on 21 March 2022, making her the highest-ranked Greek player ...
. At the China Open, she lost in the third round to Petra Kvitová, in straight sets. At the
Hong Kong Open, she won her first-round match against Eugenie Bouchard but withdrew from her next match.
At the
WTA Finals, Wozniacki beat Elina Svitolina for the first time after losing to her twice in finals. She then defeated the world No. 1, Simona Halep, in straight sets. In her third and final match of round robin play, she was defeated by Caroline Garcia in three sets. Nonetheless, she still made the semifinals. In the semifinals, she beat Karolína Plíšková in straight sets to advance to the final for the first time since
2010
The year saw a multitude of natural and environmental disasters such as the 2010 Haiti earthquake, the Deepwater Horizon oil spill, and the 2010 Chile earthquake. The 2009 swine flu pandemic, swine flu pandemic which began the previous year ...
, where she finished runner-up. In the final, she beat Venus Williams for the first time to win the biggest title of her career. By virtue of her WTA Finals crown, she moved up to world No. 3 where she would finish the season, her highest year-end ranking since 2011.
2018: Australian Open champion and back to No. 1
Wozniacki began her season at the
Auckland Open for the fourth straight year. She was the top seed and advanced into the final, but she was defeated by the same opponent she lost to the previous year in the quarterfinals, Julia Görges, in straight sets.
At the
Australian Open
The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
, Wozniacki was seeded second, her highest seeding
since 2012. She defeated Mihaela Buzărnescu in straight sets and then
Jana Fett
Jana Fett (; born 2 November 1996) is a Croatian tennis player. On 30 October 2017, Fett reached her best singles ranking of world No. 97, and on 21 May 2018, she reached her best doubles ranking of No. 348. Fett has won nine singles and five dou ...
in three, after being down 1–5 in the third set and saving two match points. She then beat Kiki Bertens and Magdaléna Rybáriková both in straight sets to reach the quarterfinals. Beating Carla Suárez Navarro in three sets, she advanced to her second Australian Open semifinal since
2011
The year marked the start of a Arab Spring, series of protests and revolutions throughout the Arab world advocating for democracy, reform, and economic recovery, later leading to the depositions of world leaders in Tunisia, Egypt, and Yemen ...
. In the semifinals, she defeated Elise Mertens in straight sets to advance to her third Grand Slam final and her first since
2014
The year 2014 was marked by the surge of the Western African Ebola epidemic, West African Ebola epidemic, which began in 2013, becoming the List of Ebola outbreaks, most widespread outbreak of the Ebola, Ebola virus in human history, resul ...
. She then upset top seed and world No. 1 Simona Halep in three sets, to become
the ninth woman to win the title after being match point down. By winning her first Grand Slam title, she regained the world No. 1 ranking on 29 January 2018 after a gap of exactly six years, which bested Serena Williams' previous record of five years 29 days.
Her next tournament was the
St. Petersburg Trophy, which she entered in the second round. She defeated
Anastasia Potapova, then lost to Daria Kasatkina in the quarterfinals. She then played the
Qatar Ladies Open and reached the semifinals by defeating
Carina Witthöft, Monica Niculescu and Angelique Kerber. However, she lost to the eventual champion Petra Kvitová in three sets, despite having three match points. With her Qatar performance, Caroline Wozniacki became only the fourth player in WTA history to surpass $30,000,000 in career prize earnings.
Wozniacki then played the
Indian Wells Open, for which she received a bye in the first round. She defeated
Lara Arruabarrena
Lara Arruabarrena Vecino (; born 20 March 1992) is a former professional tennis player from Spain. On 3 July 2017, she reached a career-high WTA singles ranking of 52, and her best doubles ranking is world No. 28, set on 22 February 2016.
Over ...
and
Aliaksandra Sasnovich
Aliaksandra Aliaksandraŭna Sasnovich (born 22 March 1994) is a Belarusian professional tennis player. She achieved her best singles ranking of world No. 29 on 19 September 2022, and peaked at No. 39 in the WTA doubles rankings on 23 August 2021 ...
in straight sets and three sets, respectively, then lost to eventual finalist Daria Kasatkina again in the fourth round. A week later, she entered the
Miami Open, where she also received a bye in the first round. However, she lost to the
Summer Olympics
The Summer Olympic Games, also known as the Summer Olympics or the Games of the Olympiad, is a major international multi-sport event normally held once every four years. The inaugural Games took place in 1896 in Athens, then part of the King ...
champion Monica Puig in three sets.
Wozniacki began her clay-court swing at the İstanbul Cup where she made the quarterfinals defeating
Ekaterina Alexandrova and Sara Errani before retiring against
Pauline Parmentier. She then played in the
Madrid Open where she easily beat Daria Gavrilova and escaping Ashleigh Barty, then lost to the eventual finalist Kiki Bertens in straight sets. Heading to Rome for the first time in three years, Wozniacki made the quarterfinals. There she received a first round bye then defeating
Alison Van Uytvanck
Alison Van Uytvanck (; born 26 March 1994) is a Belgian former professional tennis player. In August 2018, she reached her best singles ranking of world No. 37.
Van Uytvanck has won five singles and two doubles WTA Tour titles and three Chall ...
and Anastasija Sevastova but got defeated by an in form Anett Kontaveit. In the
French Open
The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...
, she made it to the fourth round. However, she lost to Daria Kasatkina in straight sets after the match was interrupted for bad light.
She played at
Eastbourne
Eastbourne () is a town and seaside resort in East Sussex, on the south coast of England, east of Brighton and south of London. It is also a non-metropolitan district, local government district with Borough status in the United Kingdom, bor ...
, where she went one better than last year winning the title; she convincingly beat
Camila Giorgi
Camila Giorgi (; born 30 December 1991) is an Italian former professional tennis player. She had a career-high singles WTA rankings, ranking of world No. 26, which was achieved on 22 October 2018. Giorgi was known for her aggressive style of pla ...
in round two. Next she got her first-ever win over Johanna Konta and then defeated Ashleigh Barty in the quarterfinals. Wozniacki then went on to save a match point to outlast Angelique Kerber to make her 53rd WTA final. In the final, she beat
Aryna Sabalenka
Aryna Siarhiejeŭna Sabalenka (born 5 May 1998) is a Belarusian professional tennis player. She is currently ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA), and is a former world No. 1 in women's doubles. ...
in two tight sets to win her 29th title of her career. The final marked her 600th career match-win. At
Wimbledon
Wimbledon most often refers to:
* Wimbledon, London, a district of southwest London
* Wimbledon Championships, the oldest tennis tournament in the world and one of the four Grand Slam championships
Wimbledon may also refer to:
Places London
* W ...
, Wozniacki lost in second round to Ekaterina Makarova, after saving five match points.
Wozniacki was scheduled to start her
2018 US Open Series in
Washington, but withdrew due to a right leg injury. Instead, she played in the
Canadian Open, where she received a bye in the first round. However, she lost to Aryna Sabalenka in three sets despite having three match points. One week later, in
Cincinnati
Cincinnati ( ; colloquially nicknamed Cincy) is a city in Hamilton County, Ohio, United States, and its county seat. Settled in 1788, the city is located on the northern side of the confluence of the Licking River (Kentucky), Licking and Ohio Ri ...
, she retired against
Kiki Bertens
Kiki Bertens (; born 10 December 1991) is a Dutch former professional tennis player. Her career-high WTA rankings#Current rankings, singles ranking was world No. 4, which she reached on 13 May 2019, becoming the highest-ranked Dutch female playe ...
in her first match of the tournament because of a left knee injury. In the
US Open, Wozniacki defeated 2011 champion Samantha Stosur in straight sets, then lost to
Lesia Tsurenko in the second round.
Coming into the East Asian season, Wozniacki participated in the
Pan Pacific Open as the defending champion, but she lost to Camila Giorgi in three sets in the second round after receiving a bye. Then in
Wuhan
Wuhan; is the capital of Hubei, China. With a population of over eleven million, it is the most populous city in Hubei and the List of cities in China by population, eighth-most-populous city in China. It is also one of the nine National cent ...
, Wozniacki was upset by Monica Puig for the second time this season in straight sets in the third round. A week later, in Beijing, Wozniacki won her second
China Open title without losing a set. With her performance in China, she became the fifth player to secure
Singapore
Singapore, officially the Republic of Singapore, is an island country and city-state in Southeast Asia. The country's territory comprises one main island, 63 satellite islands and islets, and one outlying islet. It is about one degree ...
spot.
Wozniacki entered the
WTA Finals as second seed and defending champion, and was drawn in the White Group. She was upset in straight sets in her first round robin match by seventh seed Karolína Plíšková, then defeated fourth seed Petra Kvitová in three sets. She was then defeated in three sets by sixth seed Elina Svitolina, ending her title defense. Shortly after, she revealed she had been diagnosed with
rheumatoid arthritis
Rheumatoid arthritis (RA) is a long-term autoimmune disorder that primarily affects synovial joint, joints. It typically results in warm, swollen, and painful joints. Pain and stiffness often worsen following rest. Most commonly, the wrist and h ...
before the
US Open.
2019: Playing with injuries
Wozniacki began her season at the
Auckland Open for the fifth straight year, but she was upset in the second round by
Bianca Andreescu
Bianca Vanessa Andreescu (; born June 16, 2000) is a Canadian professional tennis player. She has been WTA rankings, ranked world No. 4 in women's singles by the Women's Tennis Association, WTA. Andreescu has won two singles titles on the WTA T ...
. In
Melbourne
Melbourne ( , ; Boonwurrung language, Boonwurrung/ or ) is the List of Australian capital cities, capital and List of cities in Australia by population, most populous city of the States and territories of Australia, Australian state of Victori ...
, she made to the third round but lost to Maria Sharapova in three sets.
Due to viral illness, she withdrew from
Doha
Doha ( ) is the capital city and main financial hub of Qatar. Located on the Persian Gulf coast in the east of the country, north of Al Wakrah and south of Al Khor (city), Al Khor and Lusail, it is home to most of the country's population. It ...
and
Dubai
Dubai (Help:IPA/English, /duːˈbaɪ/ Help:Pronunciation respelling key, ''doo-BYE''; Modern Standard Arabic, Modern Standard Arabic: ; Emirati Arabic, Emirati Arabic: , Romanization of Arabic, romanized: Help:IPA/English, /diˈbej/) is the Lis ...
, which dropped her out of the top ten.
In
Indian Wells, she lost to Ekaterina Alexandrova in three tight sets. In
Miami
Miami is a East Coast of the United States, coastal city in the U.S. state of Florida and the county seat of Miami-Dade County, Florida, Miami-Dade County in South Florida. It is the core of the Miami metropolitan area, which, with a populat ...
, she made it to the fourth round by beating Aliaksandra Sasnovich and Monica Niculescu, but lost to
Hsieh Su-wei
Hsieh Su-wei (; ; born 4 January 1986) is a Taiwanese professional tennis player. A former List of WTA number 1 ranked doubles tennis players, world No. 1 in Doubles tennis, doubles with nine Grand Slam (tennis), Grand Slam titles, she is rega ...
in three sets. In April, she began her clay court season by making the final at the
Charleston Open
The Charleston Open, currently sponsored by Credit One, is a WTA Tour-affiliated professional tennis tournament for women, held every year since 1973. It is the oldest professional all-women's tournament in America with a $1,064,510 purse. The t ...
, but lost to
Madison Keys
Madison Keys (born February 17, 1995) is an American professional tennis player. She has been WTA rankings, ranked as high as world No. 5 in women's singles by the Women's Tennis Association, WTA. Keys has won ten WTA Tour-level career singles ...
in two tough sets.
Wozniacki ended her season without winning a title for the first time since 2007. On 6 December 2019, she announced that she would retire from professional tennis after the
2020 Australian Open in January.
2020–2022: Australian series: Farewell tour
Wozniacki reached the semifinals of the
2020 Auckland Open, beating
Paige Hourigan, Lauren Davis and Julia Görges, before losing to eventual runner-up
Jessica Pegula in the semifinals. She and good friend Serena Williams, playing doubles together for the only time in their careers, lost in the final to
Asia Muhammad and
Taylor Townsend.
Her farewell tournament was the
Australian Open
The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
where she bowed out in the third round in a loss to
Ons Jabeur. A special farewell match was decided to be held in May 2020 in the large
Royal Arena
The Royal Arena is a multi-use indoor arena in the Ørestad#Ørestad South, Ørestad South area of Copenhagen, Denmark. The ground was broken for construction on 26 June 2013 and the arena opened in February 2017. It has a capacity of 13,000 for ...
in Copenhagen; however, due to
COVID-19
Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. In January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic.
The symptoms of COVID‑19 can vary but often include fever ...
, it was delayed until April 2022.
2023–2024: Return to tennis, WTA 1000 quarterfinal
In June 2023, Wozniacki announced in a first-person essay in ''
Vogue'' her return to pro tennis, starting in the North American summer hardcourt swing. She accepted main draw wildcards for two big warm-up events in Montreal and Cincinnati before heading to New York for the US Open. At the
US Open, Wozniacki reached the fourth round, where she lost to eventual champion
Coco Gauff, in three sets. She later confirmed that she would not be playing in any tournaments for the remainder of the 2023 season, eyeing a return at the
2024 Australian Open where she subsequently reached the second round.
At the WTA 1000
Indian Wells Open, Wozniacki reached the quarterfinals (her first since returning to tour) defeating Zhu Lin, 25th seed
Donna Vekić,
Katie Volynets and the returning
Angelique Kerber
Angelique Kerber (; born 18 January 1988) is a German former professional tennis player. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Association (WTA) for 34 wee ...
. She lost to world No. 1,
Iga Swiatek IGA or IgA may refer to:
Businesses and organizations
* IGA (supermarkets) (initially Independent Grocers Alliance), a name used by many independent supermarkets throughout the world
** IGA (Australian supermarket group), the local Australian va ...
, retiring in the second set with an injury. At the
Miami Open, Wozniacki made a promising start, beating
Clara Burel convincingly in straight sets. She then, however, lost to
Anhelina Kalinina
Anhelina Serhiyivna Kalinina ( ; born 7 February 1997) is a Ukrainian professional tennis player. On 22 May 2023, she reached her career-high WTA singles ranking of No. 25. She peaked at No. 92 in the doubles rankings in January 2025. She has ...
in the second round, having been a set and a match point up.
Following a disappointing clay court season, in which she played only two tournaments in Charleston and Madrid, reaching only the 2nd and 1st round, respectively, Wozniacki failed to qualify for the main draw of the
2024 French Open and was not awarded a wildcard, a decision which was met with outrage by her father, Piotr, causing controversy in the run up to the event. On June 14 she received one of the two Olympic wildcards reserved for former Grand Slam champions, thus entering her into the women’s singles competition at the
2024 Summer Olympics
The 2024 Summer Olympics (), officially the Games of the XXXIII Olympiad () and branded as Paris 2024, were an international multi-sport event held in France from 26 July to 11 August 2024, with several events started from 24 July. P ...
. The other went to Naomi Osaka. Furthermore, Wozniacki expressed plans to partner with fellow Dane
Holger Rune
Holger Vitus Nødskov Rune (; born 29 April 2003) is a Danish professional tennis player. He has been ATP rankings, ranked as high as world No. 4 in men's singles by the Association of Tennis Professionals (ATP), making him the highest-ranked Da ...
for the mixed doubles event.
Following a first-round loss to
Elise Mertens
Elise Mertens (; born 17 November 1995) is a Belgian professional tennis player. She became List of WTA number 1 ranked doubles tennis players, world No. 1 in doubles on 10 May 2021, the third Belgian to hold the top ranking in either singles or ...
at the
2024 Birmingham Classic, her first grass-court tournament since her comeback, Wozniacki made a strong showing in Bad Homburg, reaching the quarterfinals after wins over seventh seed
Elina Svitolina
Elina Mykhailivna Svitolina (, ; born 12 September 1994) is a Ukrainian professional tennis player. She reached career-high rankings of world No. 3 in singles and No. 108 in doubles by the WTA rankings, WTA. Svitolina has won 18 WTA Tour single ...
and
Veronika Kudermetova
Veronika Eduardovna Kudermetova (born 24 April 1997) is a Russian professional tennis player.
She has a career-high singles ranking of world No. 9, achieved on 24 October 2022, and a best WTA doubles ranking of No. 2, reached on 6 June 2022. In ...
. In her match with third seed
Emma Navarro
Emma Navarro (born May 18, 2001) is an American professional tennis player. She has a career-high singles ranking of world No. 8 by the WTA, achieved on September 9, 2024 and a best doubles ranking of No. 93, set in 2024. Navarro has won two sin ...
she injured her knee and was forced to retire in the third set. Despite this, she re-entered the top 100 of the WTA rankings at No. 91 on July 1, the start of the
2024 Wimbledon Championships, where she reached the third round, before falling to
Elena Rybakina
Elena Andreyevna Rybakina (born 17 June 1999) is a Russian-born Kazakhstani professional tennis player. She has been WTA rankings, ranked world No. 3 in women's singles by the Women's Tennis Association, WTA, making her the first Kazakhstani ...
, having defeated
Alycia Parks and 30th seed
Leylah Fernandez.
At the Olympics in Paris, Wozniacki reached the second round after a three-set victory over
Mayar Sherif, but lost to
Danielle Collins
Danielle Rose Collins (born December 13, 1993) is an American professional tennis player. She has reached career-high WTA rankings of world No. 7 in singles and No. 79 in doubles. Collins has won four singles titles, including a WTA 1000 titl ...
also in three sets.
After reaching the second round in Cincinnati, where she lost to
Anastasia Pavlyuchenkova
Anastasia Sergeyevna "Nastia" Pavlyuchenkova (; born 3 July 1991) is a Russian professional tennis player. She reached a career-high singles WTA rankings, ranking of world No. 11 on 8 November 2021. Pavlyuchenkova has won twelve singles titles ...
, Wozniacki made it back to back round of 16 appearances at the
US Open, defeating qualifier
Nao Hibino
is a Japanese professional tennis player. She has been ranked as high as world No. 56 in singles and No. 43 in doubles by the WTA. Hibino has won three singles titles and three doubles titles on the WTA Tour. She has also won nine singles and ...
,
Renata Zarazúa, and
Jessika Ponchet in straight sets, dropping a total of only 12 games across all three matches. She then lost to 22nd seed
Beatriz Haddad Maia in a tight three-set match, showing flashes of her absolute best to save multiple match points, even bringing up break-back points, before Haddad Maia eventually served out for the victory. Despite this, Wozniacki had defended all her points from the previous edition of the tournament, maintaining a ranking of 73.
Playing style
Wozniacki is a
defensive baseliner, known for her counterpunching style of play; upon her retirement in 2020, she was described by ''
The Guardian
''The Guardian'' is a British daily newspaper. It was founded in Manchester in 1821 as ''The Manchester Guardian'' and changed its name in 1959, followed by a move to London. Along with its sister paper, ''The Guardian Weekly'', ''The Guardi ...
'' as "one of the most defensive players to ever reach No. 1". As her game is centered around the retrieval of balls with devastating consistency, her greatest assets on court are her movement, speed, court coverage, aggressive footwork, anticipation, balance, and stamina. Due to the fact that her game is based almost solely on defense, she was referred to as a
pusher by critics, and is criticised for her reactive playing style, and lack of major weapons. Wozniacki responded to criticism of her defensive playing style by saying: "If I don't have a weapon, then what do the others have? Since I'm No. 1, I must do something right."
Wozniacki's greatest weapon is her two-handed backhand, which she uses to turn defence into offence. Her backhand is hit flat, and is noted for its consistent depth, pace, and penetration; she is known for her backhand down-the-line. Throughout her career, Wozniacki's weakest shot is her forehand, noted for its lack of depth, power, and speed. Her forehand has showed no significant improvements throughout her career; this was attributed to her stubborn refusal to drop her father, Piotr Woźniacki, as her coach. To compensate for her forehand's relative weakness, she frequently utilises the moonball, a slow, high-looping shot, to push opponents far behind the baseline, and to allow her to create opportunities to attack with her aggressive backhand. Her use of the moonball was noted by tennis journalist Tumaini Carayol, who stated that she "ushered in the return" of this shot.
Wozniacki is known for her powerful first serve, which was recorded as high as ; this allows her to serve aces, and dictate play from the first stroke of a point. This is considered incongruous with her weak forehand; as noted in the Guardian, "people questioned why her serve could scale 118mph and yet her forehand could not crack open an egg". Her second serve is notably weaker, and has been frequently attacked by aggressive returners. Wozniacki is known for her return game, neutralising powerful first serves and attacking weak second serves; this allows her to dominate play from a defensive position. Throughout her career, Wozniacki has typically approached the net only to retrieve short balls, and rarely chooses to finish points at the net. Alongside her defensive skills, further strengths include her mental fortitude, determination, and competitive spirit. Wozniacki stated that she prefers hard and grass courts; she likes hard courts due to the regularity of the bounce, whereas the fast pace of grass courts allows her to defend effectively. She dislikes clay courts, as she finds sliding awkward, and felt that the slow pace inhibited her movement. She has experienced her greatest success on hard courts, where she won 24 of her 30 singles titles.
Coaching
Wozniacki's father, Piotr, was her primary coach since she was 14. Throughout the years, she was coached by
Sven Groeneveld through the Adidas Player Development Program. She was briefly coached by Ricardo Sanchez and
Thomas Johansson
Karl Thomas Conny Johansson (; born 24 March 1975) is a Swedish former professional tennis player and coach. He reached a career-high Association of Tennis Professionals (ATP) world No. 7 singles ranking in May 2002. His career highlights in si ...
. In October 2013, she hired
Thomas Högstedt, but parted ways in January 2014. In the same month, she hired
Michael Mortensen, but cut ties with him in March 2014. Since then, Wozniacki decided to be coached again by her father Piotr for the rest of her career.
Endorsements
In 2007, Wozniacki signed an endorsement deal with
Adidas
Adidas AG (; stylized in all lowercase since 1949) is a German athletic apparel and footwear corporation headquartered in Herzogenaurach, Bavaria, Germany. It is the largest sportswear manufacturer in Europe, and the second largest in the ...
, who sponsored her for clothing, footwear, and apparel throughout her career; she previously wore
Nike clothing and footwear. In 2009, she became an endorser for the line of tennis apparel designed by
Stella McCartney for Adidas. She wore her first 'Adidas by Stella McCartney' tennis dress at the
2009 US Open, and would go on to wear McCartney's designs throughout the rest of her career. For the majority of her career, Wozniacki was endorsed by
Babolat for racquets, using the Pure Aero racquet on court. From 2011 to 2013, she signed an endorsement deal with
Yonex
is a Japanese sports equipment manufacturing company. Yonex produces equipment and apparel for tennis, badminton, golf, and running.
Its range of products manufactured and commercialized includes equipment for badminton and tennis ( rackets, s ...
for racquets, using the Yonex VCORE racquet. From 2014, Wozniacki began to use the Babolat Pure Aero again. On 20 December 2010, she signed a three-year deal to endorse
Turkish Airlines
Turkish Airlines (Turkish language, Turkish: ''Türk Hava Yolları''), or legally Türk Hava Yolları Anonim Ortaklığı, is the flag carrier of Turkey. , it operates scheduled services to 352 destinations (including cargo) in Europe, Asia, Oce ...
' business class service. In 2012, Wozniacki became an endorser of Compeed BlisterPatch. In 2015, Wozniacki became an endorser of
Godiva Chocolatier. In 2018, she entered into a partnership with Lympo, a healthy lifestyle motivation app. Other sponsorship partners included
Rolex
Rolex () is a Swiss watch brand and manufacturer based in Geneva, Switzerland. Founded in 1905 as ''Wilsdorf and Davis'' by German businessman Hans Wilsdorf and his eventual brother-in-law Alfred Davis in London, the company registered ''Rolex ...
,
USANA,
The Players' Tribune
''The Players' Tribune'' is a new media platform that produces daily sports conversation and publishes first-person stories from professional athletes. The platform was founded by former professional Major League Baseball player Derek Jeter in ...
and Mundipharma.
According to the June 2011 edition of SportsPro, Wozniacki was the world's ninth-most marketable athlete. According to ''Forbes'' in 2011, Wozniacki was the second-highest-earning female athlete in the world. In 2018, ''Forbes'' ranked her Number 8 in their "Most Powerful Women in International Sports" list.
Personal life
Outside tennis
Wozniacki's best friend is fellow Danish tennis player
Malou Ejdesgaard
Malou Ejdesgaard (born 13 March 1991) is a Danish former tennis player.
She was a member of the Denmark Fed Cup team from 2010Caroline's Blog: Hello from Ponte Vidra, Florida (6 April 2010) They tried to gain an entry to the 2012 Summer Olymp ...
, who was her doubles partner in five tournaments. Wozniacki is also close friends with
Serena Williams
Serena Jameka Williams (born September 26, 1981) is an American former professional tennis player. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Association (WT ...
,
Agnieszka Radwańska
Agnieszka Roma Radwańska (; born 6 March 1989) is a Polish former professional tennis player and current coach. She was ranked world No. 2 in women's singles by the Women's Tennis Association (WTA), in July 2012. Radwańska won 20 WTA Tour sing ...
,
Urszula Radwańska
Urszula Radwańska (; born 7 December 1990) is a Polish professional tennis player.
Radwańska has won one doubles title on the WTA Tour, as well as seven singles and eleven doubles titles on the ITF Women's Circuit. On 8 October 2012, she reac ...
, and
Angelique Kerber
Angelique Kerber (; born 18 January 1988) is a German former professional tennis player. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Association (WTA) for 34 wee ...
. Wozniacki is a keen
football
Football is a family of team sports that involve, to varying degrees, kick (football), kicking a football (ball), ball to score a goal (sports), goal. Unqualified, football (word), the word ''football'' generally means the form of football t ...
fan and an avid supporter of
Liverpool F.C.
Liverpool Football Club is a professional Football club (association football), football club based in Liverpool, England. The club competes in the Premier League, the top tier of English football league system, English football. Founded in ...
Relationships
Wozniacki was in a relationship with Northern Irish professional golfer
Rory McIlroy
Rory Daniel McIlroy (born 4 May 1989) is a Northern Irish professional golfer who plays on the European Tour and the PGA Tour. He is a former world number one in the Official World Golf Ranking and has spent over 100 weeks in that position du ...
from 2011 until 2014. She announced their engagement via Twitter on 1 January 2014. On 21 May 2014, it was announced that McIlroy had ended the engagement: "The problem is mine. The wedding invitations issued at the weekend made me realise that I wasn't ready for all that marriage entails. I wish Caroline all the happiness she deserves and thank her for the great times we've had." Wozniacki later revealed that McIlroy had ended the relationship through a brief phone call and had not contacted her since.
On 14 February 2017, Valentine's Day, Wozniacki revealed on her social media accounts that she was in a relationship with former NBA basketball player
David Lee, later being confirmed by her family. The couple got engaged on 2 November 2017. Wozniacki married Lee on 16 June 2019 at the luxury resort of Castiglion del Bosco, which is near
Montalcino
Montalcino is a hill town and ''comune'' in the province of Siena, Tuscany, central Italy.
The town is located to the west of Pienza, close to the Crete Senesi in Val d'Orcia. It is from Siena, from Florence and from Pisa. Monte Amiata is l ...
in
Tuscany
Tuscany ( ; ) is a Regions of Italy, region in central Italy with an area of about and a population of 3,660,834 inhabitants as of 2025. The capital city is Florence.
Tuscany is known for its landscapes, history, artistic legacy, and its in ...
.
Serena Williams
Serena Jameka Williams (born September 26, 1981) is an American former professional tennis player. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Association (WT ...
was one of her bridesmaids and
Angelique Kerber
Angelique Kerber (; born 18 January 1988) is a German former professional tennis player. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Association (WTA) for 34 wee ...
,
Agnieszka Radwańska
Agnieszka Roma Radwańska (; born 6 March 1989) is a Polish former professional tennis player and current coach. She was ranked world No. 2 in women's singles by the Women's Tennis Association (WTA), in July 2012. Radwańska won 20 WTA Tour sing ...
, and
Urszula Radwańska
Urszula Radwańska (; born 7 December 1990) is a Polish professional tennis player.
Radwańska has won one doubles title on the WTA Tour, as well as seven singles and eleven doubles titles on the ITF Women's Circuit. On 8 October 2012, she reac ...
were among the guests. Guests at the ceremony included Williams' husband
Alexis Ohanian
Alexis Kerry Ohanian (; born April 24, 1983) is an American internet entrepreneur and investor. He is best known as the co-founder and former executive chairman of the social media site Reddit along with Steve Huffman and Aaron Swartz. He also ...
, basketball players
Pau Gasol
Pau Gasol Sáez (, ; born July 6, 1980) is a Spanish former professional basketball player. He was a six-time NBA All-Star Game, NBA All-Star and a four-time All-NBA team selection, twice on the second team and twice on the third team. Gasol ...
and
Harrison Barnes, and football player
Jesse Palmer
Jesse James Palmer (born October 5, 1978) is a Canadian television personality, sports commentator, and former professional football quarterback who played in the National Football League (NFL) for five seasons in the early 2000s. Palmer played ...
.
On 10 February 2021, Wozniacki announced on her Instagram account that she was expecting her first child. On 11 June 2021, Wozniacki gave birth to a daughter, Olivia Wozniacki Lee.
On 19 June 2022, Wozniacki announced on her Instagram account that she was expecting her second child.
On 24 October 2022, their son James Wozniacki Lee was born.
On 6 April 2025, Wozniacki announced on her Instagram account that she was expecting her third child.
Health
In October 2018, Wozniacki announced that she was diagnosed with
rheumatoid arthritis
Rheumatoid arthritis (RA) is a long-term autoimmune disorder that primarily affects synovial joint, joints. It typically results in warm, swollen, and painful joints. Pain and stiffness often worsen following rest. Most commonly, the wrist and h ...
and that she would like to become a role model for people who have the condition. She was diagnosed with the
auto-immune disease before the
2018 US Open, but was able to play through it. Wozniacki did suffer a drop in results after her diagnosis, until bouncing back by winning the 2018
China Open in Beijing without dropping a single set.
Rivalries
Wozniacki vs. S. Williams
Wozniacki and
Serena Williams
Serena Jameka Williams (born September 26, 1981) is an American former professional tennis player. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Association (WT ...
have met 11 times with Williams leading the head-to-head 10–1. Williams leads 2–0 in majors, 8–1 on hardcourts, and 1–0 on both clay and grass. Both held the No. 1 ranking at different times between November 2009 and January 2012.
They first met at the
2009 Sydney International with Williams winning in three tight sets saving match points. Wozniacki's only win over Williams came at the
2012 Miami Open where she won in straight sets. In 2014 the rivalry reached its peak with the pair meeting four times and Williams winning all of them. Three of their four meetings went to three sets with Williams coming from a set down in each to win. At the
Rogers Cup Wozniacki led by a set and a break before Williams came back to win it. They met a week later at the
Cincinnati Open where Williams again came from a set down to win. They faced off against each other in the final at the
US Open where Williams won in straight sets to claim her 18th Grand Slam title. Their most recent meeting at the
WTA Finals was an epic with Wozniacki winning the first set before Williams came back to win the second set. At 4–4 Wozniacki broke Williams to serve for the match and Williams broke back. At 6–5 Wozniacki saved match point with an incredible volley and held serve to take the set to a tiebreak. In the tiebreak, Wozniacki was up 4–1 before Williams came back and eventually prevailed.
Despite being rivals, the two maintain a strong friendship off court. Wozniacki visited Williams during her recovery from injury in 2011. In 2014, it was announced that McIlroy had ended his engagement with Wozniacki just days prior to the
French Open
The French Open (), also known as Roland-Garros (), is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam (tennis), Grand Slam ...
. Wozniacki received a call from her best friend Williams then in time of need. After they both lost early at the French Open, they went on vacation in Miami. They attended a Mariah Carey concert the night before their semifinal match at the
WTA Finals. Williams was present during Wozniacki's run at the 2014 New York City Marathon. They also went on a mini tour around New York City. Wozniacki attended Williams' wedding in 2017. Williams served as a bridesmaid at Wozniacki's wedding in 2019. In 2018, Williams posted an Instagram story during
US Open with the caption "Auntie Caro" as her daughter Olympia watches her match against Stosur.
Wozniacki vs. Radwańska
Wozniacki and
Agnieszka Radwańska
Agnieszka Roma Radwańska (; born 6 March 1989) is a Polish former professional tennis player and current coach. She was ranked world No. 2 in women's singles by the Women's Tennis Association (WTA), in July 2012. Radwańska won 20 WTA Tour sing ...
have met 17 times with Wozniacki leading the head-to-head 11–6. Wozniacki leads 9–6 on hardcourts and 2–0 on clay.
They first met at the
2007 Nordic Light Open with Radwańska taking the victory in straight sets. After that win, Wozniacki won the next five matches before the streak snapped at the
2012 Sydney International where she lost in three sets. Radwańska then won the next two matches before that streak was snapped at the
2014 Western & Southern Open where she lost in straight sets. After this event, Wozniacki took another four consecutive wins, then she lost at the
2016 Wuhan Open
The 2016 Wuhan Open (also known as the 2016 Dongfeng Motor Wuhan Open for sponsorship reasons) was a women's tennis tournament played on outdoor hard courts between September 25 and October 1, 2016. It was the 3rd edition of the Wuhan Open, and ...
in straight sets. A week later, she lost again at the
2016 China Open in straight sets. Their next two meetings were at the
2017 Qatar Ladies Open and the
2017 Rogers Cup. Wozniacki won both matches in straight sets.
Wozniacki vs. Kerber
Wozniacki and
Kerber have met 16 times with both having won 8 of them.
Wozniacki vs. Sharapova
Wozniacki and
Maria Sharapova
Maria Yuryevna Sharapova (, ; born 19 April 1987) is a Russian former professional tennis player. She was ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA) for 21 weeks. Sharapova won 36 WTA Tour-level sin ...
have met 11 times with Sharapova leading the head-to-head 7–4. Wozniacki leads 2–1 in Grand Slams with two wins at the
US Open and one loss at the
Australian Open
The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...
. They are tied at 4–4 on hard courts, while Sharapova leads 3–0 on clay.
The pair first met at the
2008 Qatar Ladies Open where Sharapova won in straight sets and then again at the
2008 Rome Masters. Wozniacki then won the next two meetings to tie the head-to-head. Sharapova then won the next three meetings including their only meeting in a final at the
2013 Indian Wells Open. Wozniacki snapped the losing streak by beating Sharapova in three sets at the
2014 US Open and would go on to the reach the final. They met again at the
2014 WTA Finals where Wozniacki won in three sets in a marathon match that lasted over three hours. Their most recent meeting was at the
2019 Australian Open where Sharapova won in three sets.
Wozniacki vs. Halep
Wozniacki and
Simona Halep
Simona Halep (; born 27 September 1991) is a Romanian former professional tennis player. She was ranked as the List of WTA number 1 ranked singles tennis players, world No. 1 in women's singles by the Women's Tennis Association (WTA) for 64 w ...
have met seven times with Wozniacki leading the head-to-head 5–2. Wozniacki leads 3–2 on hardcourts, 1–0 on both clay and grass courts and 1–0 in the majors.
They first met at the
2012 Dubai Tennis Championships with Wozniacki winning in straight sets. Then, Halep won the next two matches, one at the
2013 New Haven Open at Yale in straight sets and another one at the
2015 Dubai Tennis Championships in three sets. Wozniacki then took a four-match winning streak over Halep, beginning at the
2015 Stuttgart Open and including their most recent meeting at the
2018 Australian Open in the final, where she defeated Halep in three sets to win her first
Grand Slam title and snatch the world No. 1 position from Halep.
Wozniacki vs. Plíšková
The pair have met ten times in their career, with Wozniacki holding a 6–4 advantage over Plíšková, Wozniacki leads 6–3 on hardcourts, Plíšková leading 1–0 on grass. They never met at major level.
The rivalry between Wozniacki and
Karolína Plíšková
Karolína Plíšková (; born 21 March 1992) is a Czech professional tennis player. She has been ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA), holding the position for a total of eight weeks, and has been ...
didn't seem to brew very fast at the beginning of their meetings. The first three meetings occurred in 2013 and 2014 and all three meetings went the way of Wozniacki, all of which happening in three sets. Their rivalry really picked up in 2017 where the pair met six times, in this year their head-to-head record was 3–3 and each meeting would alternate the winner. The first meeting came in the final stage of
2017 Qatar Ladies Open, Plíšková winning is straight sets. A month later in the semifinals of
2017 Miami Open, Wozniacki took victory in three sets. Later, on the grass Pliskova took the
2017 Eastbourne International title beating Wozniacki in straight sets. Their fourth meeting was arguably the match of the year, in the
2017 Rogers Cup quarterfinals, where Wozniacki stormed back from 1–5 down in the first set and break down in the third set to take the victory. One week later, the pair met in the
2017 Western & Southern Open quarterfinals where Plíšková dispatched a tired Wozniacki from making the final of Toronto the previous week. At the semifinal stage of the
2017 WTA Finals, Wozniacki won a marathon first set propelling her to a straight sets victory over Plíšková, and eventually lifting the title. The last meeting in 2018 occurred at the round robin of the
2018 WTA Finals where Wozniacki was upset in straight sets.
Career statistics
Significant finals
Grand Slam tournaments
WTA Championships
Grand Slam performance timelines
Singles
Doubles
Achievements
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References
External links
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Caroline Wozniacki">
1990 births
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1990 births
Living people
Australian Open (tennis) champions
Danish expatriate sportspeople in Monaco
Danish expatriate sportspeople in the United States
Danish female tennis players
Danish people of Polish descent
Grand Slam (tennis) champions in girls' singles
Grand Slam (tennis) champions in women's singles
Hopman Cup competitors
Knights of the Order of the Dannebrog
Olympic tennis players for Denmark
People from Monte Carlo
Sportspeople from Odense
Tennis players at the 2008 Summer Olympics
Tennis players at the 2012 Summer Olympics
Tennis players at the 2016 Summer Olympics
Wimbledon junior champions
WTA number 1 ranked singles tennis players
ITF World Champions
Tennis players at the 2024 Summer Olympics
21st-century Danish sportswomen