The 2018

Oracle Challenger Series – Chicago The Oracle Challenger Series – Chicago is a professional tennis tournament played outdoor on hardcourt, hard courts. It is part of the Women's Tennis Association (WTA) WTA 125K series, 125K series and an ATP Challenger Tour. The tournament take ...

was a 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 ...

tournament played on outdoor

hard courts A hardcourt (or hard court) is a type of surface or floor on which a sport is played, most usually in reference to tennis courts. It is typically made of rigid materials such as asphalt or concrete, and covered with acrylic resins to seal the surf ...

. This tournament was part of the

2018 ATP Challenger Tour The ATP Challenger Tour, in 2018 in tennis, 2018, was the secondary professional tennis circuit organized by the ATP. The 2018 ATP Challenger Tour calendar comprised 159 tournaments, with prize money ranging from $50,000 up to $150,000. It was th ...

and the

2018 WTA 125K series The WTA 125K series is the secondary professional tennis circuit organised by the Women's Tennis Association. The 2018 WTA 125K series calendar consisted of ten tournaments, each with a total prize fund of $125,000 each except the Oracle Challenge ...

. The first edition took place from September 4 to 9, 2018 in

Chicago Chicago is the List of municipalities in Illinois, most populous city in the U.S. state of Illinois and in the Midwestern United States. With a population of 2,746,388, as of the 2020 United States census, 2020 census, it is the List of Unite ...

, United States.

Men's singles main-draw entrants

Seeds

* ¹ Rankings are as of 27 August 2018.

Other entrants

The following players received wildcards into the singles main draw: *

JC Aragone Juan Cruz "JC" Aragone (born June 28, 1995) is an American former professional tennis player. He attended the University of Virginia and was a member of three NCAA Men's Tennis Championship winning teams. Aragone made his first ATP main-draw a ...

Thai-Son Kwiatkowski Thai-Son Kwiatkowski (born February 13, 1995) is a Vietnamese American former tennis player. He played collegiately for the Virginia Cavaliers. On 29 May 2017, Kwiatkowski won the NCAA Men's Singles Championship. College career Coming out of hi ...

* Tommy Paul *

Andreas Seppi Andreas Seppi (born 21 February 1984) is an Italian former professional tennis player. He reached a career-high singles ranking of world No. 18 on 28 January 2013. He became the first Italian to win a title on all three surfaces. Personal lif ...

The following players received entry into the singles main draw as alternates: *

Roberto Cid Subervi Roberto Cid Subervi (; born 30 August 1993) is a Dominican–American tennis player. Cid Subervi has a career high ATP singles ranking of 211 achieved on 14 September 2020. He also has a career high ATP doubles ranking of 262, achieved on 19 ...

Ernesto Escobedo Ernesto "Neto" Escobedo III ( ; , born 4 July 1996) is a Mexican-American former professional tennis player who has a career high singles ranking of No. 67 achieved on 17 July 2017 and a doubles ranking of No. 296 achieved on 16 May 2022. Perso ...

Dominik Köpfer Dominik Koepfer (born 29 April 1994), also spelled Köpfer, is a German professional tennis player. He achieved a career-high ATP singles ranking of world No. 49 on 4 March 2024, and a doubles ranking of No. 69 on 24 June 2024. He played college ...

* Donald Young The following players received entry from the qualifying draw: *

Sekou Bangoura Sekou Bangoura Jr. (born November 18, 1991) is an American professional tennis player. Bangoura partnered with Nathan Pasha to win the 2010 Kalamazoo Boys' Junior National Tennis Championship, defeating Jack Sock and Matthew Kandath 7–5, 6� ...

Vincent Millot Vincent Millot (; born 30 January 1986, in Montpellier, France) is a French former professional tennis player. Despite never having reached the top 100, Millot has played at each of the four Grand Slam events. ATP Challenger and ITF Futures fina ...

Hugo Nys Hugo Nys (; born 16 February 1991) is a Monégasque professional tennis player who previously represented France until 2019. A doubles specialist, he reached his highest ATP doubles ranking of No. 12 on 12 June 2023 and singles ranking of No. 3 ...

Alexander Sarkissian Alexander Sarkissian (born April 3, 1990) is an American professional tennis player Tennis is a List of racket sports, racket sport that is played either individually against a single opponent (singles (tennis), singles) or between two tea ...

The following players received entry as lucky losers: *

Ruan Roelofse Ruan Roelofse (born 18 November 1989) is a professional South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. Its Provinces of South Africa, nine provinces are ...

Kaichi Uchida is a Japanese professional tennis player. Uchida has a career high Association of Tennis Professionals, ATP singles ranking of No. 147 achieved on 8 May 2023. He also has a career high ATP doubles ranking of No. 159 achieved on 28 November 202 ...

Women's singles main-draw entrants

Seeds

* ¹ Rankings are as of 27 August 2018.

Other entrants

The following players received wildcards into the singles main draw: *

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 ...

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 ...

Francesca Di Lorenzo Francesca Di Lorenzo (; born July 22, 1997) is an American former tennis player. She currently assistant coach of the University of Central Florida women's tennis team. She played collegiately for the ''Ohio State University''. On May 29, 2017, ...

Allie Kiick Alexandra Kiick (; born June 30, 1995) is an American tennis player. Kiick has won seven singles and two doubles titles on the ITF Women's Circuit. In June 2019, she reached her career-high singles ranking of world No. 126. In May 2014, she pea ...

Varvara Lepchenko Varvara Petrivna Lepchenko (born May 21, 1986) is an Uzbekistani-born American professional tennis player. She is of Ukrainian descent and played for Uzbekistan before relocating to the United States. Lepchenko won a singles title on the WT ...

The following players received entry from the qualifying draw: *

Françoise Abanda Françoise Abanda (born February 5, 1997) is a Canadian professional tennis player. She reached her highest WTA singles ranking of 111 on October 9, 2017, and her highest WTA doubles ranking of 197 on September 8, 2014. She achieved a career-high ...

Kristie Ahn Kristie Hyerim Ahn (born June 15, 1992) is an American former professional tennis player. In her career, she won seven singles and two doubles titles on the ITF Circuit. On 30 September 2019, she reached her best singles ranking of world No. 8 ...

* Robin Anderson *

Irina Falconi Irina Falconi Hartman (; born Irina Alejandra Falconi; May 4, 1990) is an Ecuadorian-born United States, American former professional tennis player. Her highest WTA singles ranking is 63, which she reached in May 2016. Her career-high in doubles ...

Sesil Karatantcheva Sesil Radoslavova Karatantcheva (; born 8 August 1989) is a Bulgarian former tennis player. On 7 November 2005, she reached her best singles ranking of world No. 35. On 19 April 2010, she peaked at No. 154 in the doubles rankings. In her career ...

Jamie Loeb Jamie Loeb (born March 8, 1995) is an American tennis player. She has career-high WTA rankings of world No. 132 in singles, achieved in February 2018, and No. 117 in doubles, achieved in July 2023. Loeb has won eleven singles and 17 doubles titl ...

Withdrawals

Jennifer Brady Jennifer Elizabeth Brady (born April 12, 1995) is an inactive American tennis player. She reached a career-high singles WTA ranking of No. 13 on 22 February 2021, and a career-high doubles ranking of 44 on 19 August 2019. Brady has won one WTA ...

→ replaced by

Duan Yingying Duan Yingying (; born 3 July 1989) is a former Chinese tennis player. In her career, she won one singles title and three doubles titles on the WTA Tour, and two WTA Challenger doubles titles, as well as eleven singles and three doubles titl ...

Dalila Jakupović Dalila Jakupović (born 24 March 1991) is a Slovenian tennis player of Bosnian descent. Jakupović to date has won two doubles titles on the WTA Tour along with five WTA Challenger doubles titles. She also has won eight singles and sixteen dou ...

→ replaced by

Beatriz Haddad Maia Beatriz "Bia" Haddad Maia (; born 30 May 1996) is a Brazilian professional tennis player. She reached a career-high of world No. 10 in singles and in doubles, becoming the first Brazilian woman to enter the top 10 in singles in the history of t ...

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 ...

→ replaced by Zhu Lin *

Magda Linette Magda Linette (born 12 February 1992) is a Polish professional tennis player. She has a career-high singles ranking of world No. 19, achieved in March 2023. She has reached eight finals on the WTA Tour, winning three titles, and the semifinal of ...

→ replaced by

Madison Brengle Madison Brengle (born April 3, 1990) is an inactive American tennis player. Her biggest success came in early 2015 when she reached her first WTA Tour final in January, followed by a fourth round major event appearance at the Australian Open. I ...

Christina McHale Christina Maria McHale (born May 11, 1992) is an American professional tennis player. Her career-high WTA rankings are world No. 24 in singles and No. 35 in doubles. Known for an aggressive baseline game, McHale was recognized by ''The New Yor ...

→ replaced by

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 ...

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 ...

→ replaced by

Katie Boulter Katie Charlotte Boulter (born 1 August 1996) is an English professional tennis player. On 4 November 2024, she reached her best singles ranking of world No. 23. On 6 January 2025, she peaked at No. 277 in the WTA doubles rankings. Boulter has ...

Rebecca Peterson Rebecca Peterson (born 6 August 1995) is a Swedish professional tennis player. She has been WTA rankings, ranked as high as world No. 43 in singles and No. 87 in doubles by the Women's Tennis Association, WTA. Peterson has reached three singles ...

→ replaced by

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 ...

Monica Puig Monica Puig Marchán (born September 27, 1993) is a Puerto Rican former professional tennis player. She is the first Puerto Rican in history to win a gold medal at the Olympics while representing Puerto Rico, having done so in 2016 at the women ...

→ replaced by

Ons Jabeur Ons Jabeur (born 28 August 1994) is a Tunisian professional tennis player. She has a career-high singles ranking by the WTA of No. 2, achieved on 27 June 2022, making her the highest-ranked African and Arab tennis player in WTA and ATP ranking ...

Women's doubles main-draw entrants

Seeds

* Rankings are as of 27 August 2018

Champions

Men's singles

Denis Istomin Denis Olegovich Istomin (born 7 September 1986) is an Uzbekistani professional tennis player. He won two singles titles (at the 2015 Aegon Open Nottingham and 2017 Chengdu Open) and achieved a career-high singles ranking of world No. 33 in Au ...

def.

Reilly Opelka Reilly Opelka (born 28 August 1997) is an American professional tennis player. At , he is tied (with Ivo Karlović) for the tallest-ever Association of Tennis Professionals, ATP-ranked player, and can produce serves that measure over . He has be ...

6–4, 6–2.

Women's singles

Petra Martić Petra Martić (; born 19 January 1991) is a Croatian professional tennis player. She has a career-high WTA rankings, singles ranking of world No. 14, achieved in January 2020. Martić has won two singles titles on the WTA Tour, one singles and o ...

def.

, 6–4, 6–1

Men's doubles

Luke Bambridge Luke Bambridge (born 21 January 1995) is a British former tennis player. A doubles specialist, he reached a career-high Association of Tennis Professionals (ATP) world No. 41 doubles ranking in May 2019. His career highlights included winning ...

Neal Skupski Neal Skupski (born 1 December 1989) is a British professional tennis player who specializes in doubles. He has a career-high doubles ranking of world No. 1. He achieved this milestone in November 2022, topping the rankings jointly with long-ti ...

def.

Leander Paes Leander Adrian Paes ( ; born 17 June 1973) is an Indian former professional tennis player and the first Asian man to be inducted into the International Tennis Hall of Fame. He is regarded as one of the greatest doubles tennis players of all-tim ...

Miguel Ángel Reyes-Varela Miguel Ángel Reyes-Varela Martínez (; born June 21, 1987) is a Mexican professional tennis player who specializes in doubles. He has a career-high ATP doubles ranking of world No. 49, achieved on 20 August 2018. In singles his best ranking is N ...

, 6–3, 6–4

Women's doubles

Kristýna Plíšková Kristýna Plíšková (; born 21 March 1992) is a Czech inactive professional tennis player. In her career, she won one singles title and five doubles titles on the WTA Tour, with three titles on the WTA Challenger Tour (two in doubles). She a ...

def.

Asia Muhammad Asia Muhammad (born April 4, 1991) is an American professional tennis player who specializes in doubles. She has been ranked as high as world No. 8 in doubles by the WTA, achieved on March 17, 2025. Muhammad has won 13 doubles titles on the WT ...

/ Maria Sanchez, 6–3, 6–2

References

External links

Official website
{{DEFAULTSORT:Oracle Challenger Series - Chicago, 2018

2018 Events January * January 1 – Bulgaria takes over the Presidency of the Council of the European Union, after the Estonian presidency. * January 4 – SPLM-IO rebels loyal to Chan Garang Lual start a raid against Juba, capital of ...

2018 ATP Challenger Tour 2018 WTA 125K series 2018 in American tennis