Petra Marčinko (born 4 December 2005) is a Croatian tennis player. Marčinko has a career-high WTA singles ranking of world No. 45, achieved on 13 July 2026, and a best doubles ranking of No. 372, attained on 20 July 2026.

Marčinko has won one WTA Tour singles title at the 2026 Morocco Open.

She achieved the No. 1 junior ranking on 13 December 2021.

Career overview 2021–2022: Junior No. 1 & professional debut On the ITF Junior Circuit, Marčinko had won nine singles and seven doubles titles. In December 2021, she completed a remarkable late-season surge as singles and doubles wins at the Orange Bowl championship saw her climb nine places to finish as the year-end junior world No. 1 on 13 December 2021.

At the beginning of 2022, she won her first junior Grand Slam title at the Australian Open, defeating Sofia Costoulas in the final, in straight sets.

As a 16-year-old, Marčinko made her WTA Tour debut at the 2022 Morocco Open in Rabat as a wildcard player defeating Rebecca Peterson, before losing to Astra Sharma in the second round.

2023–2025: First WTA 125 title She won her sixth consecutive ITF Women's Circuit title at the 2023 Caldas da Rainha Ladies Open, defeating Léolia Jeanjean in the final in straight sets, and set the new Croatian record for the youngest women's player to win six professional singles titles before turning 18.

Having been given a wildcard entry, Marčinko finished runner-up at the 2024 WTA 125 Montreux Ladies Open, losing to seventh seed Irina-Camelia Begu in the final, in three sets.

In July 2025, she won her first WTA 125 title at the ATV Tennis Open in Rome, defeating Oksana Selekhmeteva in the final.

2026: Major & top 50 debuts, WTA Tour title Marčinko made her major debut at the Australian Open where she directly entered the main-draw and recorded her first win over Tatjana Maria, before losing to Peyton Stearns in the second round.

Seeded sixth, Marčinko won her maiden tour title at the Rabat Grand Prix, defeating qualifier Vera Zvonareva, wildcard entrant Yelyzaveta Kotliar, second seed Jéssica Bouzas Maneiro and Jil Teichmann en route to the final, which she won when her opponent, Anhelina Kalinina, retired due to injury in the second set. As a result of claiming the trophy, Marčinko reached a new career-high ranking of world No. 51 on 25 May 2026 and the top 50 on 8 June 2026.

Entering the main draw as a lucky loser at the Eastbourne Open, she recorded wins over fellow Croatian Antonia Ružić, qualifier Kimberly Birrell and Caty McNally to reach her first WTA grass court semifinal. Marčinko retired due to injury after losing the first set of her last four match against second seed Madison Keys.

Seeded second at the Iași Open, Marčinko defeated wildcard entrant Nadia Podoroska and qualifier Elina Avanesyan,. before losing to Tamara Zidanšek in the quarterfinals.

Grand Slam singles performance timeline

Tournament2023202420252026W–LAustralian OpenQ2Q1A2R1–1French OpenQ2Q2Q21R0–1WimbledonAQ1Q11R0–1US OpenQ2AQ20–0Win–loss0–00–00–01–31–3

WTA Tour finals Singles: 1 (title) LegendWTA 250 (1–0)Finals by surfaceClay (1–0)

ResultW–LDateTournamentTierSurfaceOpponentScoreWin1–0Rabat Grand Prix, MoroccoWTA 250Clay Anhelina Kalinina6–2, 3–0 ret.

WTA 125 finals Singles: 2 (1 title, 1 runner-up) ResultW–LDateTournamentSurfaceOpponentScoreLoss 0–1 Montreux Ladies Open, Switzerland Clay Irina-Camelia Begu 6–1, 3–6, 0–6Win 1–1 ATV Rome Open, Italy Clay Oksana Selekhmeteva 6–3, 4–6, 6–3

ITF Circuit finals

Singles: 12 (11 titles, 1 runner-up) LegendW100 tournaments (3–0)W80 tournaments (1–0)W60/75 tournaments (4–1)W25 tournaments (3–0)

ResultW–LDateTournamentTierSurfaceOpponentScoreWin 1–0 Mar 2022ITF Antalya, TurkeyW25 Clay Carole Monnet 6–4, 6–1Win 2–0 Mar 2022ITF Antalya, TurkeyW25 Clay Elisabetta Cocciaretto 1–6, 6–4, 6–4Win 3–0 Oct 2022Internationaux de Poitiers, FranceW80 Hard (i) Ysaline Bonaventure 6–3, 7–6(2)Win 4–0 Jun 2023Roma Cup, ItalyW60 Clay Giorgia Pedone 6–2, 6–2Win 5–0 Jun 2023ITF Tarvisio, ItalyW25 Clay Katarzyna Kawa 6–1, 4–6, 6–2Win 6–0 Sep 2023Caldas da Rainha Open, PortugalW60 Hard Léolia Jeanjean 6–4, 6–1Win 7–0 Oct 2024Challenger de Saguenay, CanadaW75+H Hard (i) Anouk Koevermans 6–3, 4–6, 7–6(3)Win 8–0 Aug 2025Landisville Tennis Challenge, United StatesW100 Hard Janice Tjen 7–6(4), 3–6, 6–4Loss 8–1 Sep 2025Le Neubourg Open, FranceW75 Hard Greet Minnen 2–6, 1–6Win 9–1 Oct 2025Tyler Pro Challenge, United StatesW100 Hard Mary Stoiana 6–3, 6–0Win 10–1 Nov 2025Fujairah Open, UAEW75 Hard Alevtina Ibragimova 6–4, 6–4Win 11–1 Dec 2025Dubai Tennis Challenge, UAEW100 Hard Vera Zvonareva 6–3, 6–3

Doubles: 5 (4 titles, 1 runner-up) LegendW75 tournaments (2–0)W15 tournaments (2–1)

ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreWin 1–0 May 2021ITF Šibenik, CroatiaW15 Clay Natália Szabanin Darya Astakhova Ekaterina Makarova 6–4, 6–3Win 2–0 May 2021ITF Šibenik, CroatiaW15 Clay Natália Szabanin Nefisa Berberović Nicole Fossa Huergo 6–4, 3–6, [10–4]Loss 2–1 Oct 2021ITF Monastir, TunisiaW15 Clay Sebastianna Scilipoti Ma Yexin Zhuoma Ni Ma 6–3, 4–6, [7–10]Win 3–1 Aug 2024ITF Kuršumlijska Banja, SerbiaW75 Clay Lola Radivojević Živa Falkner Tara Würth 7–6(5), 6–4Win 4–1 Mar 2025ITF Murska Sobota, SloveniaW75 Hard (i) Tara Würth Cho I-hsuan Cho Yi-tsen 6–3, 3–6, [10–4]

Junior finals

Grand Slam tournaments

Singles: 1 (title) ResultYearTournamentSurfaceOpponentScoreWin2022Australian OpenHard Sofia Costoulas7–5, 6–1

Fed Cup participation Singles (12–3) EditionStageDateLocationAgainstSurfaceOpponentW/LScore2022Z1 R/R 11 Apr 2022Antalya, Turkey SwedenClay Jacqueline Cabaj AwadW 6–0, 6–4 12 Apr 2022 Bulgaria Julia TerziyskaW 6–4, 6–4 14 Apr 2022 Georgia Nino NatsvlishviliW 6–2, 6–2Z1 P/O 16 Apr 2022 Serbia Lola RadivojevićW 6–1, 2–6, 6–0P/O 11 Nov 2022Rijeka, Croatia GermanyHard (i) Jule NiemeierW 6–3, 6–2 12 Nov 2022 Anna-Lena FriedsamL 4–6, 1–62023Z1 R/R 10 Apr 2023Antalya, Turkey DenmarkClay Johanne SvendsenW 2–6, 7–5, 7–5 11 Apr 2023 Bulgaria Lia KaratanchevaL 6–4, 3–6, 3–6 13 Apr 2023 Sweden Caijsa HennemannL 4–6, 5–72025Z1 R/R 8 April 2025Vilnius, Lithuania Austria Hard (i) Tamara KosticW 6–1, 6–1 9 April 2025 Portugal Matilde JorgeW 6–1, 3–6, 7–5 10 April 2025 Latvia Beatrise ZeltiņaW 6–3, 6–1Z1 P/O 12 April 2025 Serbia Teodora KostovićW 6–3, 6–3P/O 15 November 2025Varaždin, Croatia Colombia Yuliana LizarazoW 6–3, 6–0 16 November 2025 Czech Republic Nikola BartůňkováW 6–3, 7–6(6)

Doubles (4–3) EditionStageDateLocationAgainstSurfacePartnerOpponentW/LScore2022Z1 R/R 15 Apr 2022Antalya, Turkey AustriaClayTara WürthBarbara HaasMelanie KlaffnerL 7–5, ret.2023Z1 R/R 10 Apr 2023 Denmark Rebecca MortensenJohanne SvendsenL 3–6, 5–7 14 Apr 2023 Norway Lucija Ćirić Bagarić Emilie EldeLilly Elida HåsethW 6–2, 6–12025Z1 R/R 8 April 2025Vilnius, Lithuania Austria Hard (i)Tara Würth Ekaterina PerelyginaJulia GrabherW 6–3, 4–6, [10–7]Z1 P/O 12 April 2025 Serbia Teodora KostovićNatalija SenićW 6–1, 6–2P/O 15 November 2025Varaždin, Croatia ColombiaJana Fett Yuliana LizarazoCamila OsorioW 6–4, 6–3 16 November 2025 Czech Republic Lucie HavlíčkováLinda NoskováL 2–6, 6–3, 3–6

United Cup (0–2) Group membershipUnited Cup (0–2)Matches by surfaceHard (0–2)Matches by typeDoubles (0–2)Matches by settingOutdoors (0–2) OutcomeNo.SurfaceMatch type (partner)Opponent nationOpponent player(s)Score202329 December–8 January; RAC Arena, Perth, Australia; Group stageLoss1.HardMixed doubles (with Matija Pecotić) France Jessika Ponchet / Édouard Roger-Vasselin4–6, 4–6202527 December–5 January; RAC Arena, Perth, Australia; Group stageLoss1.HardMixed doubles (with Ivan Dodig) United States Coco Gauff / Taylor Fritz2–6, 3–6

References

External links