2025 Ostra Group Open
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2025 Ostra Group Open
The 2025 Ostra Group Open was a professional tennis tournament played on clay courts. It was the 22nd edition of the tournament which was part of the 2025 ATP Challenger Tour. It took place in Ostrava, Czech Republic between 28 April and 4 May 2025. Singles main-draw entrants Seeds * 1 Rankings are as of 21 April 2025. Other entrants The following players received wildcards into the singles main draw: * Jan Jermář * Jan Kumstát * Maxim Mrva The following players received entry from the qualifying draw: * Petr Brunclík * Norbert Gombos * Max Houkes * Àlex Martínez * Rudolf Molleker * Jelle Sels The following player received entry as a lucky loser: * Vitaliy Sachko Champions Singles * Zsombor Piros def. Hady Habib 6–3, 6–2. Doubles * Jan Jermář / Stefan Latinović def. Finn Reynolds / James Watt 7–5, 6–3. References {{DEFAULTSORT:Ostra Group Open, 2025 2025 ATP Challenger Tour 2025 So far, the year has seen the continuation of ma ...
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Clay Court
A clay court is one of the types of tennis court on which the sport of tennis is played. Clay courts are built on a foundation of crushed stone, brick, shale, and other construction aggregate, aggregate, with a thin layer of fine clay particles on top. Clay courts are more common in Continental Europe and Latin America than in North America, Asia-Pacific or Britain. The only Grand Slam (tennis), Grand Slam tournament that uses clay courts is the French Open. Clay courts come in the more common #Red clay, red clay (known in France as ''terre battue''), which is actually crushed brick, and the slightly harder #Green clay, green clay, which is actually crushed metabasalt. Although slightly less expensive to construct than other types of tennis courts, clay requires much maintenance: the surface must be watered and rolled regularly to preserve texture and flatness, and brushed carefully before and during each match. Early history Clay courts, although now commonly associated with ...
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Lukáš Klein
Lukáš Klein (born 22 March 1998) is a Slovak professional tennis player. Klein has a career-high ATP singles ranking of world No. 109, achieved on 5 August 2024. He also has a career-high doubles ranking of No. 240, achieved on 5 April 2021. He is currently the No. 1 Slovak tennis player in singles. Klein has reached 15 career singles finals, with a record of 9 wins and 6 losses, including 3 ATP Challenger titles. Additionally, he has reached 11 career doubles finals, with a record of 5 wins and 6 losses, including a 1–3 result in Challenger finals. Career 2021: ATP & top 250 & Olympics debut Klein won the doubles title at the 2021 Challenger La Manche with compatriot Alex Molčan 1–6, 7–5, 0–6 Klein made his ATP main draw singles debut in March at the 2021 Argentina Open, where he defeated Andrea Collarini, Thiago Seyboth Wild and Ernesto Escobedo to qualify for the main draw. Klein then went on to upset compatriot Andrej Martin in straight sets. He would go on t ...
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2025 In Czech Sport
5 (five) is a number, numeral and digit. It is the natural number, and cardinal number, following 4 and preceding 6, and is a prime number. Humans, and many other animals, have 5 digits on their limbs. Mathematics 5 is a Fermat prime, a Mersenne prime exponent, as well as a Fibonacci number. 5 is the first congruent number, as well as the length of the hypotenuse of the smallest integer-sided right triangle, making part of the smallest Pythagorean triple ( 3, 4, 5). 5 is the first safe prime and the first good prime. 11 forms the first pair of sexy primes with 5. 5 is the second Fermat prime, of a total of five known Fermat primes. 5 is also the first of three known Wilson primes (5, 13, 563). Geometry A shape with five sides is called a pentagon. The pentagon is the first regular polygon that does not tile the plane with copies of itself. It is the largest face any of the five regular three-dimensional regular Platonic solid can have. A conic is determined ...
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Prosperita Open
The Ostra Group Open, formerly known as Prosperita Open, is a professional tennis tournament played on outdoor red clay courts. It is currently part of the Association of Tennis Professionals (ATP) Challenger Tour. It has been held annually in Ostrava, Czech Republic, since 2004. Pavel Šnobel and Sergiy Stakhovsky have won two doubles titles each. Stakhovsky won his second doubles title 13 years after his first win. Jan Hájek, Stéphane Robert Stéphane Robert (; born 17 May 1980) is a French tennis coach and a former professional player. Professional career 2007–2008 Robert missed 16 months of tennis action in 2007–2008 because he was infected with the Hepatitis A virus in F ..., and Andrey Kuznetsov won both singles and doubles title the same year. Past finals Singles Doubles References External linksOstrava Overview ATP Tour TennisForme ...
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James Watt (tennis)
James Watt (born 9 June 2000) is a New Zealand tennis player. He has a career high singles ranking of No. 608 achieved on 14 July 2025 and a career high doubles ranking of No. 165 achieved on 9 June 2025. He attended Saint Mary's College of California in the United States. Career In July 2023, playing alongside compatriot Isaac Becroft, he won the men's doubles title at the Caloundra International (M15) event on the Sunshine Coast in Queensland. In September 2024, he lost in the final of the singles at the Darwin Tennis International in Darwin, Australia going three sets against Omar Jasika, a player ranked over 1100 places higher than him in the rankings. In October 2024, he won the doubles $25,000 ITF tournament in Cairns, Australia alongside Matt Hulme. In January 2025, he was awarded a wildcard into the main draw of the men's doubles at the 2025 ASB Classic in Auckland, alongside Marcus Daniell where they were drawn against Roberto Carballes Baena and Luciano Darder ...
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Finn Reynolds
Finn Reynolds (born 4 January 2000) is a professional tennis player from New Zealand who specializes in doubles. Reynolds first represented New Zealand at the Davis Cup in 2021, where he lost his debut match to World No. 83 Kwon Soon-woo. College Reynolds played college tennis at Ole Miss. Junior Grand Slam finals Doubles: 1 (runner-up) ATP Challenger and ITF World Tennis Tour finals Doubles: 21 (13 titles, 8 runners-up) Davis Cup (1) * indicates the outcome of the Davis Cup match followed by the score The Score may refer to: Films and television * The Score (1978 film), ''The Score'' (1978 film), a 1978 Swedish film, released in Sweden as ''Lyftet'' * The Score (2001 film), ''The Score'' (2001 film), a 2001 crime drama film starring Robert De Ni ..., date, place of event, the zonal classification and its phase, and the court surface. References External links * * * 2000 births Living people New Zealand male tennis players Ole Miss Rebels men's tennis p ...
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Vitaliy Sachko
Vitaliy Sachko (; born 14 July 1997) is a Ukrainian tennis player. He has a career-high singles ranking of world No. 156, achieved on 31 July 2023 and a doubles ranking of No. 130, achieved on 9 June 2025. He is currently the No. 1 player from Ukraine. Professional career 2020: ATP debut He made his ATP main draw debut at the 2020 Erste Bank Open in the singles draw as lucky loser, where he was defeated by Dominic Thiem, 4–6, 5–7. 2021: Challenger Tour success, Top 250 debut In March, ranked No. 389 in the world, he made it to the final of the Challenger Tour event in Lugano, Switzerland, where he lost to Dominic Stephan Stricker. In July, he made another Challenger final in Perugia, Italy losing to Tomas Martin Etcheverry in singles. At the same tournament, he took his revenge, winning his third Challenger doubles title for 2021 by defeating the Argentinian pair Tomas Etcheverry/Renzo Olivo, partnering Dominic Stricker. As a result, he reached a career-high ranking of No. ...
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Jelle Sels
Jelle Sels (born 10 August 1995) is a Dutch tennis player. Sels competes mainly in the Challenger tour circuit. He has a career high ATP singles ranking of world No. 127 achieved on 28 November 2022. He also has a career high doubles ranking of world No. 201 achieved on 20 June 2022. Career In October 2022, Sels won his maiden ATP Challenger The ATP Challenger Tour (known until the end of 2008 as the ATP Challenger Series) is a series of international men's professional tennis tournaments. It was founded in 1976 as a replacement for the ILTF Satellite Circuit (founded in 1971) as ... singles title at the 2022 Internationaux de Tennis de Vendée in Mouilleron-le-Captif, France. As a result, he moved more than 30 positions up in the rankings in the top 150 at world No. 141 on 10 October 2022. ATP Challenger Tour finals Singles: 4 (1 title, 3 runner-ups) Doubles: 1 (1 runner-up) ITF Futures/World Tennis Tour finals Singles: 17 (6 titles, 11 runner-ups) Referen ...
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Rudolf Molleker
Rudolf Molleker (born 26 October 2000) is a German tennis player. Molleker achieved a career high ATP singles ranking of world No. 146 on 29 July 2019 and a doubles ranking of world No. 376 on 21 March 2022. Personal information He was born in Sieverodonetsk in Ukraine to Roman and Tanja Molleker and moved to Oranienburg in Germany when he was three years old. He is of Russian–German descent. He trained at Mouratoglou Tennis Academy in Sophia Antipolis (France) starting in 2018. Career 2017: ATP debut Molleker made his ATP main draw debut at the German Open in Hamburg after defeating Casper Ruud and Leonardo Mayer, who later won the tournament as a lucky loser, in the qualifying rounds. 2018: First Challenger title & ATP and top-10 wins Molleker won his first ATP Challenger Tour title as a wildcard at the Heilbronner Neckarcup, defeating Jiří Veselý in the final. He won his first match at ATP-level at the Stuttgart Open, defeating compatriot Jan-Lennard Struff in ...
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Max Houkes
Max Houkes (born 3 July 2000) is a Dutch tennis player. He has a career high ATP singles ranking of world No. 245 achieved on 30 June 2025. He also has a career high doubles ranking of No. 344 achieved on 23 October 2023. Houkes has won three ATP Challenger The ATP Challenger Tour (known until the end of 2008 as the ATP Challenger Series) is a series of international men's professional tennis tournaments. It was founded in 1976 as a replacement for the ILTF Satellite Circuit (founded in 1971) as ... doubles titles. ATP Challenger and ITF World Tennis Tour finals Singles: 13 (10–3) Doubles 17 (12–5) References External links * * 2000 births Living people Dutch male tennis players Sportspeople from Emmen, Netherlands 21st-century Dutch sportsmen {{Netherlands-tennis-bio-stub ...
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Norbert Gombos
Norbert Gombos (, ; born 13 August 1990, occasionally spelled Norbert Gomboš) is a Slovak professional tennis player competing primarily on the ATP Challenger Tour. He achieved a career-high ATP singles ranking of World No. 80 on 2 October 2017. He was also part of the Slovakia Davis Cup team. Personal life He is a member of the Hungarian community in Slovakia Slovakia, officially the Slovak Republic, is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the west, and the Czech Republic to the northwest. Slovakia's m .... Performance timeline Singles ''Current through the 2022 Davis Cup.'' Challenger and Futures finals Singles: 28 (10–18) Doubles: 5 (1–4) Record against top 10 players Gombos' record against players who have been ranked in the top 10, with those who are active in boldface. Only ATP Tour main draw matches are considered: References External link ...
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Maxim Mrva
Maxim Mrva (born 2 August 2007) is a Czech professional tennis player. He has a career-high ATP singles ranking of No. 552, achieved on 9 June 2025, and a doubles ranking of No. 932, achieved on 19 May 2025. He won the boys' doubles title at the 2024 US Open with Rei Sakamoto, and reached an ITF junior combined ranking of No. 2 on 6 January 2025. Early life Mrva was born in Prostějov. He began playing tennis at the age of five, introduced to the sport by his older brother. He also played football in his youth with compatriot Jan Kumstát. He represents TK Agrofert Prostějov. Junior career In September 2021, he won the Petits As, defeating Federico Cinà in the final. In October 2022, he won the J1 Torneo Internacional Junior in Sanxenxo. In January 2023, he made his Junior Grand Slam debut at the Australian Open, where he reached the second round in singles. That year, he represented the Czech Republic at the Junior Davis Cup, where he won the title with Jan Kumstát a ...
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