Jonáš Forejtek (born 10 March 2001) is a professional tennis player from the Czech Republic. Forejtek has a career high ATP singles ranking of World No. 217, achieved on 1 August 2022. He also has a career high ATP doubles ranking of No. 300, achieved on 27 October 2025. He won the 2019 Junior singles US Open. He reached the ITF world No. 1 Junior combined ranking on 9 September 2019.
Forejtek has reached ten career singles finals, with a record of 5 wins and 5 losses all on the ITF Futures Tour. Additionally, he has reached ten career doubles finals, with a record of 8 wins and 2 losses which includes a 5–1 record in ATP Challenger Tour finals.
Career
2019: Junior No. 1, First Challenger title in doubles
In 2019, Forejtek reached three junior Grand Slam finals, one in singles and two in doubles, winning them all. At the 2019 Australian Forejtek and compatriot partner Dalibor Svrčina won the boys' doubles title beating Americans Emilio Nava and Cannon Kingsley 7–6(7–5), 6–4 in the finals. At the 2019 Wimbledon Championships he partnered with another compatriot Jiří Lehečka capturing his second boys' grand slam doubles title, defeating Govind Nanda and Liam Draxl 7–5, 6–4 in the championship match. At the 2019 Junior US Open, he defeated Emilio Nava 6–7(4–7), 6–0, 6–2 in the final to win the boys’ singles championship.Forejtek Juniors Activity Forejtek was the World No. 1 male junior player according to the ITF combined singles and doubles junior rankings, achieved on 9 September 2019.Forejtek Juniors Overview
As wildcard entrants, Forejtek and fellow Czech Michael Vrbenský won the doubles title at the 2019 Svijany Open challenger tournament in Liberec, Czech Republic. Impressively, they defeated third seeds in the quarterfinals (or second round), the top seeds in the semifinals and then claimed the title by bettering the second seeds Nikola Ćaćić and Antonio Šančić in the final.Forejtek Doubles Titles
2020–2021: ATP and top 300 debuts in singles Forejtek made his ATP debut at 2020 Sofia Open receiving a wildcard entry into the singles main draw. He proceeded to claim an upset victory over former World No. 3 Marin Čilić in the first round, losing just 5 games in a little over an hour. He was then defeated by another former top 10 player Richard Gasquet but Forejtek still entered the top 355 on 16 November 2020 and the following November he made his debut in the top 300 on 1 November 2021 at No. 294.
2022: Top 250 debut He made his top 250 debut on 16 May 2022 at No. 226 following a semifinal showing as a qualifier at the 2022 Heilbronner Neckarcup Challenger in Germany.
2025–2026: Challenger 125 title and top 300 in doubles Forejtek won his biggest ATP Challenger Tour 125 doubles title at the 2025 Copa Sevilla with Dominik Kellovský.
Junior Grand Slam finals Singles: 1 (1 title) ResultYearTournamentSurfaceOpponentScoreWin 2019 US Open Hard Emilio Nava 6–7(4–7), 6–0, 6–2
Doubles: 2 (2 titles) ResultYearTournamentSurfacePartnerOpponentsScoreWin 2019 Australian Open Hard Dalibor Svrčina Cannon Kingsley Emilio Nava 7–6(7–5), 6–4Win 2019 Wimbledon Grass Jiří Lehečka Liam Draxl Govind Nanda 7–5, 6–4
ATP Challenger and ITF Tour finals
Singles: 12 (5–7) Legend (singles)ATP Challenger Tour (0–1)ITF Futures Tour (5–6)Finals by surfaceHard (0–2)Clay (5–4)Grass (0–0)Carpet (0–1)
ResultW–LDateTournamentTierSurfaceOpponentScoreLoss0–1Czech Republic F9, Valašské MeziříčíFuturesHard Karol Drzewiecki3–6, 4–6Loss0–2M15 Antalya, TurkeyWorld Tennis TourClay Christopher O'Connell6–2, 4–6, 1–6Win1–2M25 Vogau, AustriaWorld Tennis TourClay Camilo Ugo Carabelli7–6(9–7), 4–6, 6–4Loss1–3M25 Nussloch, GermanyWorld Tennis TourCarpet Ruben Bemelmans7–6(7–4), 6–7(3–7), 2–6Win2–3M15 Antalya, TurkeyWorld Tennis TourClay Nikolás Sánchez Izquierdo6–4, 6–3Win3–3M15 Buschhausen, GermanyWorld Tennis TourClay Louis Wessels6–4, 6–3Loss3–4M25 Pardubice, Czech RepublicWorld Tennis TourClay Louis Wessels4–6, 6–4, 3–6Loss3–5M25 Esch-sur-Alzette, LuxembourgWorld Tennis TourHard Jacob Fearnley4–6, 4–6Win4–5M15 Kursumlijska Banja, SerbiaWorld Tennis TourClay Branko Đurić6–2, 6–2Win5–5M25 Kassel, GermanyWorld Tennis TourClay Carlos Sánchez Jover6–2, 6–3Loss5–6M25 Ollersbach, AustriaWorld Tennis TourClay Viacheslav Bielinskyi6–7(6–8), 6–7(3–7)Loss5–7Plovdiv IV, BulgariaChallengerClay Max Alcalá Gurri4–6, 2–6
Doubles: 12 (9–3) Legend (doubles)ATP Challenger Tour (5–2)ITF Futures Tour (4–1)Finals by surfaceHard (1–1)Clay (8–1)Grass (0–0)Carpet (0–1)
ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreLoss0–1Czech Republic F7, LiberecFuturesCarpet Jan Mertl Marek Gengel Petr Nouza6–2, 3–6, [3–10]Win1–1Liberec, Czech RepublicChallengerClay Michael Vrbenský Nikola Ćaćić Antonio Šančić6–4, 6–3Win2–1M25 Vogau, AustriaWorld Tennis TourClay Jan Mertl Vít Kopřiva Jaroslav Pospíšil6–4, 7–5Win3–1M25+H Říčany, Czech RepublicWorld Tennis TourClay Michael Vrbenský Niels Lootsma Petr Nouza7–6(7–4), 7–6(7–5)Win4–1M25 Antalya, TurkeyWorld Tennis TourClay Michael Vrbenský Fábián Marozsán Péter Nagy6–3, 6–4Win5–1Prague, Czech RepublicChallengerClay Michael Vrbenský Evgeny Karlovskiy Evgenii Tiurnev 6-1, 6–4Loss5–2Forlì, ItalyChallengerHard (i) Jelle Sels Victor Vlad Cornea Fabian Fallert4–6, 7–6(8–6), [7–10]Win6–2Liberec, Czech RepublicChallengerClay Michael Vrbenský Miloš Karol Tomáš Lánik7–5, 6–7(5–7), [10–4]Win7–2Nottingham, UKChallengerHard (i) Michael Vrbenský Jiří Barnát Filip Duda7–6(7–5), 7–6(7–5)Win8–2M15 Kuršumlijska Banja, SerbiaWorld Tennis TourClay Sean Cuenin Dinko Dinev Dian Nedev 6–2, 6–2Win9–2Seville, SpainChallengerClay Dominik Kellovský Mario Mansilla Díez Bruno Pujol Navarro 2–6, 6–3, [10–5] Loss9–3Zadar, CroatiaChallengerClay Simone Agostini Gonzalo Escobar Nino Serdarušić 1–6, 2–6
Performance timeline
Singles Current through the 2020 Sofia Open
Tournament201920202021 2022 SRW–LGrand Slam tournamentsAustralian OpenAAA0 / 00–0French OpenAAA 0 / 00–0WimbledonANHAQ10 / 00–0US OpenAAAQ10 / 00–0Win–loss0–00–00–0 0–00 / 00-0National representationOlympic GamesNot HeldANH0 / 00–0Davis CupZ1RRA0 / 12–0Career statistics201920202021 2022CareerTournaments0101Titles–Finals0–00–00–00–0Overall win–loss2–01–10–03–1Year-end ranking536362304261
References
External links