Katerina Siniakova - WTA #47 (2026-01-05)
| wtatennis.com | WTA | Country |  Czechoslovakia |
| Wikipedia | Eng / Fr | Birth | - |
| Career best ranking | Never ranked | Résidence |  Unknown |
| Height | - | ||
| Weight | - |
| Conditions | W | D | ratio |
|---|---|---|---|
| Hard (out.) | 13 | 17 | 43.33% |
| Grass | 6 | 5 | 54.55% |
| Clay | 2 | 6 | 25.00% |
| Hard (in.) | 0 | 1 | 0.00% |
| TOTAL | 21 | 29 | 42.00% |
| # | Date | Categ | Tournament | Conditions | Round | #Rank | Opponent | Score | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2026-01-18 | GS |  WTA Australian Open | Hard (out.) | 32e | #47 |  #3 Amanda Anisimova | ||
| 2 | 2026-01-18 | GS | WTA Australian Open | Hard (out.) | 64e | #47 |  #87 Panna Udvardy | ||
| 3 | 2026-01-12 | 500 | Adelaide International 1 WTA | Hard (out.) | 8e | #47 |  #21 Diana Shnaider | 6/1 2/6 7/5 | |
| 4 | 2026-01-12 | 500 | Adelaide International 1 WTA | Hard (out.) | 16e | #47 |  #27 Dayana Yastremska | 6/0 6/1 | |
| 5 | 2025-10-06 | 1000 |  Wuhan Open | Hard (out.) | QF | #86 | #4 Jessica Pegula | 2/6 6/0 6/3 | |
| 6 | 2025-10-06 | 1000 | Wuhan Open | Hard (out.) | 8e | #86 | #89 Iva Jovic | 7/5 6/3 | |
| 7 | 2025-10-06 | 1000 | Wuhan Open | Hard (out.) | 16e | #86 | #38 Maya Joint | 6/3 6/1 | |
| 8 | 2025-10-06 | 1000 | Wuhan Open | Hard (out.) | 32e | #86 | #17 Diana Shnaider | 6/4 6/4 | |
| 9 | 2025-09-22 | 1000 | China Open WTA | Hard (out.) | 64e | #86 |  #42 Anastasia Potapova | 6/3 6/4 | |
| 10 | 2025-09-15 | 500 |  Seoul Open WTA | Hard (out.) | DF | #86 | #15 Ekaterina Alexandrova | 6/4 6/2 | |
| 11 | 2025-09-15 | 500 | Seoul Open WTA | Hard (out.) | QF | #86 |  #68 Suzan Lamens | 6/1 7/5 | |
| 12 | 2025-09-15 | 500 | Seoul Open WTA | Hard (out.) | 8e | #86 | #18 Daria Kasatkina | 7/6(2) 6/2 | |
| 13 | 2025-09-15 | 500 | Seoul Open WTA | Hard (out.) | 16e | #86 | #318 Sohyun Park | 6/2 6/2 | |
| 14 | 2025-09-08 | 500 |  Guadalajara Open WTA | Hard (out.) | 16e | #86 | #10000 Storm Hunter | 7/6(5) 4/6 6/3 | |
| 15 | 2025-08-25 | GS | WTA US Open | Hard (out.) | 64e | #86 | #50 Hailey Baptiste | 7/5 6/3 | |
| 16 | 2025-06-30 | GS |  Wimbledon WTA | Grass | 32e | #73 |  #52 Naomi Osaka | 6/3 6/2 | |
| 17 | 2025-06-30 | GS | Wimbledon WTA | Grass | 64e | #73 | #5 Qinwen Zheng | 7/5 4/6 6/1 | |
| 18 | 2025-06-23 | 500 |  Bad Homburg WTA | Grass | 8e | #73 | #3 Jessica Pegula | 6/2 6/3 | |
| 19 | 2025-06-23 | 500 | Bad Homburg WTA | Grass | 16e | #73 | #39 Veronika Kudermetova | 7/6(4) 7/5 | |
| 20 | 2025-06-16 | 500 | German Open (WTA) | Grass | 8e | #73 |  #12 Elena Rybakina | 6/4 7/6(5) | |
| 21 | 2025-06-16 | 500 | German Open (WTA) | Grass | 16e | #73 |  #76 Viktoriya Tomova | 6/1 6/2 | |
| 22 | 2025-05-25 | GS |  WTA Roland Garros | Clay | 64e | #62 | #15 Daria Kasatkina | 6/1 3/6 6/2 | |
| 23 | 2025-05-07 | 1000 |  WTA1000 Rome | Clay | 64e | #57 |  #41 Olga Danilovic | 3/6 6/4 6/4 | |
| 24 | 2025-04-21 | 1000 |  WTA Mutua Madrid Open | Clay | 64e | #57 | #35 Katie Boulter | 4/6 6/2 6/1 | |
| 25 | 2025-03-18 | 1000 | Miami WTA 1000 | Hard (out.) | 32e | #59 |  #32 Ons Jabeur | 6/4 7/6(7) | |
| 26 | 2025-03-18 | 1000 | Miami WTA 1000 | Hard (out.) | 64e | #59 | #68 Yue Yuan | 6/2 2/6 7/6(4) | |
| 27 | 2025-03-03 | 1000 | WTA Indian Wells Masters | Hard (out.) | 16e | #53 | #17 Karolina Muchova | 7/5 6/1 | |
| 28 | 2025-03-03 | 1000 | WTA Indian Wells Masters | Hard (out.) | 32e | #53 | #20 Yulia Putintseva | 6/2 6/2 | |
| 29 | 2025-03-03 | 1000 | WTA Indian Wells Masters | Hard (out.) | 64e | #53 |  #98 Maria Lourdes Carle | 6/2 6/1 | |
| 30 | 2025-02-16 | 1000 |  Dubai WTA | Hard (out.) | 32e | #53 | #22 Marta Kostyuk | 6/3 6/4 | |
| 31 | 2025-01-27 | 500 | Linz - WTA Linz | Hard (in.) | 16e | #46 |  #44 Elina Avanesyan | 6/3 6/2 | |
| 32 | 2025-01-12 | GS | WTA Australian Open | Hard (out.) | 64e | #46 |  #2 Iga Swiatek | 6/3 6/4 | |
| 33 | 2025-01-06 | 500 | Adelaide International 1 WTA | Hard (out.) | 16e | #37 | #16 Diana Shnaider | 6/3 0/6 6/0 | |
| 34 | 2024-10-14 | 500 | Ningbo Open | Hard (out.) | 8e | #37 | #11 Daria Kasatkina | 1/6 6/3 6/2 | |
| 35 | 2024-10-14 | 500 | Ningbo Open | Hard (out.) | 16e | #37 | #45 Magda Linette | 6/2 6/4 | |
| 36 | 2024-10-07 | 1000 | Wuhan Open | Hard (out.) | 16e | #36 |  #2 Aryna Sabalenka | 6/4 6/4 | |
| 37 | 2024-10-07 | 1000 | Wuhan Open | Hard (out.) | 32e | #36 | Philippines #153 Alexandra Eala | 6/3 6/1 | |
| 38 | 2024-09-25 | 1000 | China Open WTA | Hard (out.) | 32e | #36 | #146 Yulia Starodubtseva | 6/2 6/2 | |
| 39 | 2024-08-26 | GS | WTA US Open | Hard (out.) | 64e | #36 | #14 Madison Keys | 6/4 6/1 | |
| 40 | 2024-08-12 | 1000 | Cincinnati Masters WTA | Hard (out.) | 32e | #38 | #17 Anna Kalinskaya | 1/6 6/2 6/3 | |
| 41 | 2024-07-28 | OG | JO - Olympic Games - WTA | Clay | 32e | #40 | #44 Clara Burel | 7/6(3) 6/4 | |
| 42 | 2024-07-22 | 250 |  Prague WTA | Clay | 8e | #40 | #631 Laura Samson | 1/6 7/5 6/3 | |
| 43 | 2024-07-22 | 250 | Prague WTA | Clay | 16e | #40 | #284 Louisa Chirico | 7/5 4/6 6/3 | |
| 44 | 2024-07-01 | GS | Wimbledon WTA | Grass | 32e | #40 | #50 Yulia Putintseva | 6/0 4/6 6/2 | |
| 45 | 2024-07-01 | GS | Wimbledon WTA | Grass | 64e | #40 |  #201 Marina Stakusic | 6/4 6/2 | |
| 46 | 2024-06-17 | 500 | German Open (WTA) | Grass | QF | #40 | #5 Jessica Pegula | 7/6(2) 3/6 6/3 | |
| 47 | 2024-06-17 | 500 | German Open (WTA) | Grass | 8e | #40 | #7 Qinwen Zheng | 6/4 6/4 | |
| 48 | 2024-06-17 | 500 | German Open (WTA) | Grass | 16e | #40 | #21 Emma Navarro | 6/4 6/3 | |
| 49 | 2024-05-26 | GS | WTA Roland Garros | Clay | 32e | #40 | #154 Chloe Paquet | 3/6 7/6(2) 7/6(6) | |
| 50 | 2024-05-26 | GS | WTA Roland Garros | Clay | 64e | #40 | #135 Dalma Galfi | 7/5 7/6(3) |
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