Match log updated: 2026-08-30 18:41 UTC
Katerina Siniakova — WTA Match Log
39 main-draw matches · 22–17 · 56.4% wins
| Opponent | Score | Result | H2H | Match Data | Date ↑ | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|---|
| Angelique Kerber | 3-6 6-4 3-6 | L | H2H | Match data | Feb 5, 2021* | R32 | Grampians Trophy | WTA 500 | Hard |
| Fiona Ferro | 7-6(5) 2-6 4-6 | L | H2H | Match data | Feb 10, 2021* | R128 | Australian Open | Grand Slam | Hard |
| Monica Niculescu | 6-2 4-6 6-0 | W | H2H | Match data | Feb 27, 2021 | Q1 | Qatar Open | WTA 500 | Hard |
| Lesia Tsurenko | 3-6 2-6 | L | H2H | Match data | Feb 28, 2021 | Q2 | Qatar Open | WTA 500 | Hard |
| Ons Jabeur | 2-6 3-6 | L | H2H | Match data | Mar 9, 2021* | R64 | Dubai Tennis Championships | WTA 1000 | Hard |
| Kirsten Flipkens | 6-1 6-2 | W | H2H | Match data | Mar 18, 2021* | R32 | St. Petersburg | WTA 500 | Hard |
| Margarita Gasparyan | 4-6 4-6 | L | H2H | Match data | Mar 19, 2021* | R16 | St. Petersburg | WTA 500 | Hard |
| Ana Konjuh | 6-7(3) 5-7 | L | H2H | Match data | Mar 25, 2021* | R128 | Miami Open | WTA 1000 | Hard |
| Cristina Bucsa | 7-6(5) 3-6 6-3 | W | H2H | Match data | Apr 22, 2021* | R32 | Istanbul | WTA 250 | Clay |
| Kristina Mladenovic | 6-4 3-6 6-4 | W | H2H | Match data | Apr 23, 2021* | R16 | Istanbul | WTA 250 | Clay |
| Elise Mertens | 4-6 4-6 | L | H2H | Match data | Apr 24, 2021* | QF | Istanbul | WTA 250 | Clay |
| Ana Bogdan | 6-7(7) 5-7 | L | H2H | Match data | Apr 27, 2021 | Q1 | Madrid Open | WTA 1000 | Clay |
| Clara Tauson | 6-1 6-3 | W | H2H | Match data | May 20, 2021* | R32 | Parma | WTA 250 | Clay |
| Serena Williams | 7-6(4) 6-2 | W | H2H | Match data | May 21, 2021* | R16 | Parma | WTA 250 | Clay |
| Caroline Garcia | 7-5 6-1 | W | H2H | Match data | May 22, 2021* | QF | Parma | WTA 250 | Clay |
| Coco Gauff | 5-7 6-1 2-6 | L | H2H | Match data | May 22, 2021* | SF | Parma | WTA 250 | Clay |
| Marie Bouzkova | 6-0 4-6 6-2 | W | H2H | Match data | Jun 1, 2021* | R128 | Roland Garros | Grand Slam | Clay |
| Veronika Kudermetova | 7-6(7) 5-7 7-5 | W | H2H | Match data | Jun 2, 2021* | R64 | Roland Garros | Grand Slam | Clay |
| Tamara Zidansek | 6-0 6-7(5) 2-6 | L | H2H | Match data | Jun 5, 2021* | R32 | Roland Garros | Grand Slam | Clay |
| Varvara Gracheva | 6-3 6-2 | W | H2H | Match data | Jun 23, 2021* | R32 | Bad Homburg Open | WTA 250 | Grass |
| Jessica Pegula | 6-3 5-7 6-4 | W | H2H | Match data | Jun 24, 2021* | R16 | Bad Homburg Open | WTA 250 | Grass |
| Laura Siegemund | 7-5 6-4 | W | H2H | Match data | Jun 25, 2021* | QF | Bad Homburg Open | WTA 250 | Grass |
| Sara Sorribes Tormo | 6-2 6-4 | W | H2H | Match data | Jun 26, 2021* | SF | Bad Homburg Open | WTA 250 | Grass |
| Angelique Kerber | 3-6 2-6 | L | H2H | Match data | Jun 26, 2021* | F | Bad Homburg Open | WTA 250 | Grass |
| Yafan Wang | 6-1 6-0 | W | H2H | Match data | Jun 30, 2021* | R128 | Wimbledon | Grand Slam | Grass |
| Coco Vandeweghe | 4-6 6-2 6-2 | W | H2H | Match data | Jul 1, 2021* | R64 | Wimbledon | Grand Slam | Grass |
| Ashleigh Barty | 3-6 5-7 | L | H2H | Match data | Jul 3, 2021* | R32 | Wimbledon | Grand Slam | Grass |
| Jodie Burrage | 6-0 6-4 | W | H2H | Match data | Jul 15, 2021* | R32 | Prague Open | WTA 250 | Hard |
| Tereza Smitkova | 2-6 7-6(3) 6-3 | W | H2H | Match data | Jul 16, 2021* | R16 | Prague Open | WTA 250 | Hard |
| Barbora Krejcikova | 3-6 0-6 | L | H2H | Match data | Jul 17, 2021* | QF | Prague Open | WTA 250 | Hard |
| Jelena Ostapenko | 6-1 6-3 | W | H2H | Match data | Aug 11, 2021* | R64 | Canadian Open | WTA 1000 | Hard |
| Garbiñe Muguruza | 6-2 0-6 6-3 | W | H2H | Match data | Aug 12, 2021* | R32 | Canadian Open | WTA 1000 | Hard |
| Sara Sorribes Tormo | 7-6(4) 0-6 3-6 | L | H2H | Match data | Aug 13, 2021* | R16 | Canadian Open | WTA 1000 | Hard |
| Shelby Rogers | 7-5 6-1 | W | H2H | Match data | Aug 25, 2021* | R32 | Tennis In the Land | WTA 250 | Hard |
| Nagi Hanatani | 6-0 6-0 | W | H2H | Match data | Aug 26, 2021* | R16 | Tennis In the Land | WTA 250 | Hard |
| Anett Kontaveit | 3-6 7-5 2-6 | L | H2H | Match data | Aug 27, 2021* | QF | Tennis In the Land | WTA 250 | Hard |
| Anastasija Sevastova | 7-6(6) 6-3 | W | H2H | Match data | Sep 1, 2021* | R128 | US Open | Grand Slam | Hard |
| Maria Sakkari | 4-6 2-6 | L | H2H | Match data | Sep 2, 2021* | R64 | US Open | Grand Slam | Hard |
| Tereza Martincova | 7-5 4-6 6-7(7) | L | H2H | Match data | Sep 23, 2021* | R32 | Ostrava | WTA 500 | Hard |
| Kim Clijsters | 6-1 2-6 6-2 | W | H2H | Match data | Oct 8, 2021* | R128 | Indian Wells Open | WTA 1000 | Hard |
| Angelique Kerber | 1-6 7-6(4) 5-7 | L | H2H | Match data | Oct 9, 2021* | R64 | Indian Wells Open | WTA 1000 | Hard |
| Anett Kontaveit | 3-6 3-6 | L | H2H | Match data | Oct 21, 2021* | R32 | Moscow | WTA 500 | Hard |
3 qualifying matches shown in the table; qualifying is excluded from main-draw summaries and leaderboards. Estimated from the tournament schedule where an exact match date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Mapping details.