Nikola Bartůňková (born 25 February 2006) is a Czech professional tennis player. She has a career-high singles ranking by the WTA of No. 34, achieved on 14 September 2026, and a best doubles ranking of No. 320, reached on 14 August 2023.

Career 2021–24: Tour debut, six months anti-doping ban In April 2021, at the 2021 İstanbul Cup, Bartůňková defeated world No. 152, Leonie Küng, in the first round of qualifying, but lost in the second to Anastasia Gasanova.

She made her WTA Tour debut at the same tournament one year later, after being handed a wildcard entry into the main draw, losing to Anastasia Potapova.

On 16 October 2023, Bartůňková won her first tour-level match when she defeated Dayana Yastremska in the first round of the 2023 Transylvania Open, before losing in three hours to Ana Bogdan in the second round.

In November 2024, Bartůňková was issued with a six-month competition ban backdated to April 2024 for an anti-doping rule violation after testing positive for unintentional use of trimetazidine (TMZ) at two events in early 2024. She had been provisionally suspended from May 2024 until the conclusion of the investigation. The International Tennis Integrity Agency (ITIA) accepted that the source of the TMZ was a contaminated supplement for which she bore "no significant fault or negligence" for having ingested.

2025: WTA 500 semifinal & 125 final In January, Bartůňková played first matches after end of her hiatus in Oslo, reaching semifinal at W15 event where she lost to Anouck Vrancken Peeters. At her second event at the W35 in Sunderland, she claimed her fourth career title. Bartůňková reached another final just a week after the W35 event in Glasgow. In July, she qualified for the Ladies Open Hechingen and beat two former top-100 players, María Lourdes Carlé and Julia Grabher, en route to her first W75 title. In September, Bartůňková was awarded a wildcard into Guadalajara 125 Open, where she lost to eventual finalist Panna Udvardy in the second round. The following week, she received another wildcard entry, this time at the WTA 500 Guadalajara Open, and scored her second and third WTA Tour main-draw wins over Nicole Fossa Huergo and fellow Czech player Darja Viďmanová in straight sets to reach her maiden tour quarterfinal, where she overcame defending champion Magdalena Fręch. Her run was ended in the semifinals by eventual champion, Iva Jovic, in three sets. As a result, she moved up more than 80 places in the rankings to enter the top 200 for the first time at world No. 144, on 15 September 2025.

In October, Bartůňková reached her first WTA 125 final at the Samsun Open but lost to second seed Kaja Juvan. Bartůňková received a wildcard to the WTA 500 Pan Pacific Open in Tokyo but lost to local wildcard Wakana Sonobe. The following week, she lost in the opening round in Chennai, after losing to eventual finalist Kimberly Birrell, in three sets.

In November, Bartůňková received her first nomination for the national team in the 2025 Billie Jean King Cup and helped her team to win Group D. The Czech teenager defeated Yuliana Lizarazo from Colombia, but lost to Petra Marčinko from Croatia. Bartůňková Davis Cup

2026: Major, WTA 1000 debuts & first top 10 win, top 50 In January, Bartůňková entered her first major qualifying at the 2026 Australian Open as the 16th seed. She then scored three wins to make her main-draw debut, where she defeated former top-10 player Daria Kasatkina for her first major match win. Bartůňková reached the third round with an upset over Belinda Bencic, marking her first top-10 win. Her run was ended in the third round by 21st seed Elise Mertens. Following making the final round of qualifying of the Miami Open, Bartůňková entered the top 100 in the singles rankings at No. 95 on 30 March 2026, becoming the fourth 2006-born player to achieve the feat (after Victoria Mboko, Maya Joint and Sara Bejlek).

Bartůňková made her WTA 1000 debut at the 2026 Italian Open as a lucky loser, entering the main draw directly in the second round, replacing tenth seed Victoria Mboko. She recorded her first win at the 1000-level over wildcard Tyra Grant. She reached the last 16 of a WTA 1000 for the first time by upsetting 17th seed Madison Keys. Bartůňková reached her first WTA 125 final on grass at the Birmingham Open, where she lost to top seed Alexandra Eala, in three sets.

Performance timelines

Only main-draw results in WTA Tour, Grand Slam tournaments, Billie Jean King Cup, United Cup, Hopman Cup and Olympic Games are included in win–loss records.

Singles Current through the 2026 Monterrey Open. Tournament20222023202420252026 Grand Slam tournamentsAustralian OpenAAAA3R0 / 12–1French OpenAAAA1R0 / 10–1WimbledonAAAA3R0 / 12–1US OpenAAAA0 / 00–0Win–Loss0–00–00–00–04–30 / 34–3WTA 1000 tournamentsQatar OpenANTIAAA0 / 00–0Dubai ChampionshipsNTIAAAA0 / 00–0Indian Wells Open A A A AQ20 / 00–0Miami Open A A A AQ20 / 00–0Madrid Open A A A AQ20 / 00–0Italian Open A A A A4R0 / 12–1Canadian OpenAAAA3R0 / 12–1Cincinnati OpenAAAA2R0 / 11–1China OpenNHAAA0 / 00–0Wuhan OpenNot heldAA0 / 00–0Win–loss0–00–00–00–05–30 / 35–3Career statistics 20222023202420252026Tournaments 1 1 0 3 12Career total: 17Titles00000Career total: 0Finals00000Career total: 0Hard win–loss0–01–10–04–412–70 / 1117–12Clay win–loss0–10–00–00–02–20 / 32–3Grass win–loss0–00–00–00–04–30 / 34–3Overall win–loss0–11–10–04–418–120 / 1723–18Year-end ranking283270488130

Doubles Current through the 2026 US Open. Tournament20222023202420252026 Grand Slam tournamentsAustralian OpenAAAAA0 / 00–0French OpenAAAAA0 / 00–0WimbledonAAAA1R0 / 10–1US OpenAAAA1R0 / 10–1Win–loss0–00–00–00–00–20 / 20–2Career statisticsTournaments11013Career total: 6Overall win–loss1–11–10–00–11–20 / 63–5

WTA 125 finals

Singles: 2 (2 runner-ups) ResultW–LDateTournamentSurfaceOpponentScoreLoss 0–1 Oct 2025Samsun Open, Turkey Hard Kaja Juvan 6–7(8–10), 3–6Loss 0–2 Birmingham Open, United Kingdom Grass Alexandra Eala 7–5, 3–6, 5–7

ITF Circuit finals

Singles: 11 (6 titles, 5 runner-ups) LegendW60/75 tournaments (1–1)W50 tournaments (0–1)W25/35 tournaments (5–3)Finals by surfaceHard (1–3)Clay (5–2)

ResultW–LDateTournamentTierSurfaceOpponentScoreLoss 0–1 Nov 2021ITF Milovice, Czech RepublicW25 Hard (i) Linda Nosková 3–6, 4–6Loss 0–2 May 2022Edge Istanbul, TurkeyW60 Clay Diana Shnaider 5–7, 5–7Win 1–2 Apr 2023ITF Santa Margherita di Pula, ItalyW25 Clay Ylena In-Albon 6–0, 7–5Win 2–2 Aug 2023ITF Erwitte, GermanyW25 Clay Daniela Vismane 6–4, 6–1Win 3–2 Oct 2023ITF Santa Margherita di Pula, ItalyW25 Clay Katharina Hobgarski 6–0, 1–0 ret.Loss 3–3 Jan 2024ITF Sunderland, United KingdomW35 Hard (i) Valentina Ryser 3–6, 6–7(6–8)Win 4–3 Jan 2025ITF Sunderland, United KingdomW35 Hard (i) Amelia Rajecki 6–4, 3–6, 6–3Loss 4–4 Jan 2025GB Pro-Series Glasgow, United KingdomW35 Hard (i) Valentina Ryser 5–7, 6–7(6–8)Win 5–4 Jun 2025ITF Stuttgart-Vaihingen, GermanyW35 Clay Emily Seibold 6–4, 7–6(7–2)Loss 5–5 Jul 2025ITF Aschaffenburg, GermanyW50 Clay Nuria Brancaccio 6–4, 4–6, 4–6Win 6–5 Jul 2025Ladies Open Hechingen, GermanyW75 Clay Julia Grabher 7–5, 6–2

Junior finals Grand Slam tournaments Singles: 1 (runner-up) ResultYearTournamentSurfaceOpponentScoreLoss2023WimbledonGrass Clervie Ngounoue2–6, 2–6

Doubles: 1 (runner-up) ResultYearTournamentSurfacePartnerOpponentsScoreLoss2022French OpenClay Céline Naef Sára Bejlek Lucie Havlíčková3–6, 3–6

ITF Junior Circuit Singles: 10 (6 titles, 4 runner-ups) LegendJ500 (0–1)J300 (1–1)J200 (3–0)J100 (0–2)J60 (2–0)

ResultW–LDateTournamentTierSurfaceOpponentScoreWin1–0Jul 2019ITF Prague, Czech RepublicGrade 4 Clay Radka Zelníčková 6–3, 6–3Win2–0Oct 2019ITF Budapest, HungaryGrade 4Clay Luca Janosi6–3, 6–4Loss2–1Jan 2020ITF Bromma, SwedenGrade 3Hard Weronika Baszak4–6, 3–6Loss2–2Feb 2020ITF Kärnten, AustriaGrade 3Carpet Laura Isabel Pütz2–6, 6–4, 3–6Loss2–3May 2021ITF Říčany, Czech RepublicGrade 1Clay Julia Middendorf3–6, 6–4, 6–7(4–7)Loss2–4Jul 2021ITF Milan, ItalyGrade AClay Alexandra Eala3–6, 3–6Win3–4Sep 2021ITF Rakovník, Czech RepublicGrade 2Clay Tereza Valentová2–6, 6–1, 6–0FinalistNPMar 2022ITF Benicarló, SpainGrade 2Clay Yoana KonstantinovacancelledWin4–4Mar 2022ITF Villena, SpainGrade 1Clay Hanne Vandewinkel7–5, 6–1Win5–4Jan 2023ITF Bratislava, SlovakiaJ200Hard Kristýna Tomajková6–1, 6–1Win6–4Feb 2023ITF Oberhaching, GermanyJ200Hard Vlada Mincheva6–0, 6–3

Doubles: 6 (5 titles, 1 runner-up) LegendJ300 (1–1)J200 (4–0)

ResultW–LDateTournamentTierSurfacePartnerOpponentsScore Win1–0Sep 2020ITF Rakovník, Czech RepublicGrade 2Clay Nelly Kněžková Rozalia Gruszczynska Pola Wygonowska6–1, 6–2 Win2–0May 2021ITF Říčany, Czech RepublicGrade 1Clay Sára Bejlek Alexis Blokhina Flavie Brugnone6–3, 6–4 Win3–0May 2021ITF Hannover, GermanyGrade 2Clay Céline Naef Tea Lukic Laura Isabel Pütz6–3, 6–3 Win4–0Sep 2021ITF Rakovník, Czech RepublicGrade 2Clay Elena Pridankina Virginia Ferrara Giorgia Pedone6–3, 6–3 Win5–0Mar 2022ITF Benicarló, SpainGrade 2Clay Daria Yesypchuk Joëlle Steur Marie Vogt7–5, 6–4 Loss5–1Aug 2022ITF Prague, Czech RepublicGrade 1Clay Karolina Kozakova Amélie Šmejkalová Tereza Valentová4–6, 1–6

Wins against top 10 players Bartůňková has a record against players who were, at the time the match was played, ranked in the top 10.

No.Player EventSurfaceScoreYears110Australian Open, AustraliaHard2R6–3, 0–6, 6–4126 2026 22China Open, ChinaHard3R6–4, 6–334

Notes

References

External links