Petra Marčinko (born 4 December 2005) is a Croatian

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 ...

player. Marčinko has a career-high WTA singles ranking of 132, achieved on 23 October 2023. She also has a career-high doubles ranking of 440, achieved on 21 April 2025. She has won seven titles in singles and four in doubles on the

ITF Women's Circuit The ITF Women's World Tennis Tour, previously known as the ITF Women's Circuit, is a series of professional tennis tournaments run by the International Tennis Federation for female professional tennis players. History It serves as a developmenta ...

Career

Juniors

On the ITF Junior Circuit, Marčinko had won nine singles and seven doubles titles. She achieved the number-one junior ranking on 13 December 2021. In December 2021, she completed a remarkable late-season surge as singles and doubles victories at the prestigious

Orange Bowl The Orange Bowl is an annual American college football bowl game played in the Miami metropolitan area. Played annually since 1935 Orange Bowl, January 1, 1935, it is tied with the Sugar Bowl and the Sun Bowl as the second-oldest bowl games in ...

championships saw her climb nine places to finish as the year-end junior world No. 1. At the beginning of 2022, she won her first junior Grand Slam title at the

Australian Open The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...

, defeating

Sofia Costoulas Sofia Costoulas (; born 2 April 2005) is a Belgian professional tennis player. She has career-high rankings of No. 184 in singles, achieved on 16 June 2025, and No. 102 in doubles, achieved on 26 May 2025. Early life Costoulas was born in Genk t ...

in the final, in straight sets.

Professional

Marčinko made her

WTA Tour The WTA Tour (also known as the Hologic WTA Tour for sponsorship reasons) is a worldwide top-tier tennis tour for women and organized by the Women's Tennis Association. The second-tier tour is the WTA 125 series, and third-tier is the ITF Wome ...

debut at the 2022 Morocco Open in Rabat defeating

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 ...

, before losing to

Astra Sharma Astra Sharma (born 11 September 1995) is an Australian professional tennis player. She has career-high WTA rankings of 84 in singles and 91 in doubles. Sharma has won one singles title and three doubles titles on the WTA Tour. In addition, she ...

in the second round. She won her sixth consecutive

title at the 2023 Caldas da Rainha Ladies Open, defeating

Léolia Jeanjean Léolia Jeanjean (born 14 August 1995) is a French tennis player. She has a career-high singles ranking of world No. 92 by the WTA, achieved on 9 June 2025. She reached her best doubles ranking of No. 162 on 18 March 2024. Early life Jeanjean w ...

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 was runner-up at the

WTA 125 WTA 125 tournaments are an international series of professional women's tennis tournaments organized by the Women's Tennis Association since 2012. Sometimes called the WTA Challenger tour (analogous to the men's ATP Challenger Series),

2024 Montreux Nestlé Open The 2024 Montreux Nestlé Open was a professional tennis tournament played on outdoor clay courts. It was the seventh edition of the tournament and part of the 2024 WTA 125 tournaments (upgraded from the ITF World Tennis Tour). It took place in ...

, losing to seventh seed

Irina-Camelia Begu Irina-Camelia Begu (born 26 August 1990) is a Romanian tennis player. She reached a career-high WTA ranking, WTA singles ranking of world No. 22 , in August 2016. Two years later, she reached her highest ranking in doubles, also No. 22. She is ...

in the final in three sets.

Grand Slam performance timelines

Singles

WTA Challenger finals

Singles: 1 (runner-up)

ITF Circuit finals

Singles: 7 (7 titles)

Doubles: 5 (4 titles, 1 runner-up)

Junior finals

Grand Slam tournaments

Girls' singles: 1 (title)

Fed Cup participation

Singles (10–3)

Doubles (3–2)

United Cup (0–2)

References

External links

* * * {{DEFAULTSORT:Marcinko, Petra 2005 births Living people Tennis players from Zagreb Croatian female tennis players Grand Slam (tennis) champions in girls' singles Australian Open (tennis) junior champions 21st-century Croatian sportswomen