Petra Marčinko (born 4 December 2005) is a Croatian tennis player.[1]
Marčinko has a career-high WTA singles ranking of 113, achieved on 11 August 2025. She also has a career-high doubles ranking of 386, achieved on 11 August 2025. She has one WTA 125 singles title as well as eight titles in singles and four in doubles on the ITF Women's Circuit.
Career
2021-2022: Junior No. 1, Pro debut
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.[2]
In December 2021, she completed a remarkable late-season surge as singles and doubles victories at the prestigious Orange Bowl championships saw her climb nine places to finish as the year-end junior world No. 1.[3]
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.[4]
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (P#) preliminary round; (DNQ) did not qualify; (A) absent; (Z#) Davis/Fed Cup Zonal Group (with number indication) or (PO) play-off; (G) gold, (S) silver or (B) bronze Olympic/Paralympic medal; (NMS) not a Masters tournament; (NTI) not a Tier I tournament; (P) postponed; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.
To avoid confusion and double counting, these charts are updated at the conclusion of a tournament or when the player's participation has ended.