H2H data updated: 2026-07-19 14:15 UTC
Katerina Siniakova vs Serena Williams H2H: 1-0
Katerina Siniakova holds a 1–0 lead over Serena Williams in their WTA head-to-head. Across 1 main-draw meeting, Katerina Siniakova leads 1–0 on clay. Most recently, Katerina Siniakova won the 2021 Parma fourth round 7-6(4) 6-2.
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CZE
Age 30
Right-Handed
174 cm / 5'9"
H2H
1
–
0
1 main draw meetings
USA
Age 44
Right-Handed
175 cm / 5'9"
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| May 21, 2021* | Parma | WTA 250 | R16 | Clay | Katerina Siniakova | 7-6(4) 6-2 | Serena Williams | Match data |
* Estimated match date where the exact historical date is unavailable.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Katerina Siniakova | #34 | #27 | 1,718 | 1,894 | 227 | 241 | 48.5% | 0 | 0 | 0 | 1 | 4 | 5 |
| Serena Williams | #320 | #1 | 13,615 | 2,405 | 825 | 170 | 82.9% | 23 | 23 | 5 | 17 | 3 | 71 |
Career Progression by Age
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Age | Katerina Siniakova | Serena Williams | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 15 | — | — | — | — | — | — | — | 1997 | 3–2 | 60.0% | #101 | 1,582 | 0 | 0 |
| 16 | — | — | — | — | — | — | — | 1998 | 26–11 | 70.3% | #20 | 1,895 | 0 | 0 |
| 17 | 2013 | 0–1 | 0.0% | #171 | 1,488 | 0 | 0 | 1999 | 37–7 | 84.1% | #4 | 2,170 | 1 | 4 |
| 18 | 2014 | 4–6 | 40.0% | #84 | 1,520 | 0 | 0 | 2000 | 37–8 | 82.2% | #6 | 2,174 | 1 | 7 |
| 19 | 2015 | 13–20 | 39.4% | #102 | 1,523 | 0 | 0 | 2001 | 40–7 | 85.1% | #6 | 2,259 | 1 | 10 |
| 20 | 2016 | 18–18 | 50.0% | #52 | 1,766 | 0 | 0 | 2002 | 57–5 | 91.9% | #1 | 2,348 | 4 | 18 |
| 21 | 2017 | 23–23 | 50.0% | #49 | 1,696 | 0 | 2 | 2003 | 36–3 | 92.3% | #3 | 2,369 | 6 | 22 |
| 22 | 2018 | 26–22 | 54.2% | #31 | 1,777 | 0 | 2 | 2004 | 39–11 | 78.0% | #7 | 2,192 | 6 | 24 |
| 23 | 2019 | 20–27 | 42.6% | #58 | 1,675 | 0 | 2 | 2005 | 21–9 | 70.0% | #11 | 2,028 | 7 | 25 |
| 24 | 2020 | 6–13 | 31.6% | #59 | 1,702 | 0 | 2 | 2006 | 12–4 | 75.0% | #95 | 2,016 | 7 | 25 |
| 25 | 2021 | 22–17 | 56.4% | #49 | 1,802 | 0 | 2 | 2007 | 34–10 | 77.3% | #7 | 2,058 | 8 | 27 |
| 26 | 2022 | 17–19 | 47.2% | #49 | 1,763 | 0 | 3 | 2008 | 41–8 | 83.7% | #2 | 2,109 | 9 | 31 |
| 27 | 2023 | 23–17 | 57.5% | #45 | 1,828 | 0 | 5 | 2009 | 50–13 | 79.4% | #1 | 2,106 | 11 | 34 |
| 28 | 2024 | 26–25 | 51.0% | #45 | 1,809 | 0 | 5 | 2010 | 25–4 | 86.2% | #4 | 2,149 | 13 | 36 |
| 29 | 2025 | 17–20 | 45.9% | #48 | 1,884 | 0 | 5 | 2011 | 22–4 | 84.6% | #12 | 2,155 | 13 | 38 |
| 30 | 2026 | 12–13 | 48.0% | #34 | 1,833 | 0 | 5 | 2012 | 48–6 | 88.9% | #3 | 2,239 | 15 | 44 |
| 31 | — | — | — | — | — | — | — | 2013 | 77–5 | 93.9% | #1 | 2,345 | 17 | 55 |
| 32 | — | — | — | — | — | — | — | 2014 | 52–10 | 83.9% | #1 | 2,209 | 18 | 62 |
| 33 | — | — | — | — | — | — | — | 2015 | 50–6 | 89.3% | #1 | 2,197 | 21 | 67 |
| 34 | — | — | — | — | — | — | — | 2016 | 36–5 | 87.8% | #2 | 2,177 | 22 | 69 |
| 35 | — | — | — | — | — | — | — | 2017 | 8–1 | 88.9% | #22 | 2,172 | 23 | 70 |
| 36 | — | — | — | — | — | — | — | 2018 | 18–7 | 72.0% | #16 | 2,078 | 23 | 70 |
| 37 | — | — | — | — | — | — | — | 2019 | 25–8 | 75.8% | #10 | 2,052 | 23 | 70 |
| 38 | — | — | — | — | — | — | — | 2020 | 16–5 | 76.2% | #11 | 1,991 | 23 | 71 |
| 39 | — | — | — | — | — | — | — | 2021 | 12–6 | 66.7% | #41 | 1,950 | 23 | 71 |
| 40 | — | — | — | — | — | — | — | 2022 | 3–4 | 42.9% | #320 | 1,891 | 23 | 71 |
| 44 | — | — | — | — | — | — | — | 2026 | 0–1 | 0.0% | #320 | — | 23 | 71 |