H2H data updated: 2026-10-29 00:00 UTC
Katerina Siniakova holds a 2–1 lead over Peyton Stearns in their WTA head-to-head. Across 3 main-draw meetings, Katerina Siniakova leads 2–0 on hard courts, while Peyton Stearns leads 1–0 on clay. Most recently, Katerina Siniakova won the 2026 Japan Women's Open first round 6-4 0-6 4-0.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Katerina Siniakova | 6-4 0-6 4-0 (ret.) | Peyton Stearns | Match data | Oct 20, 2026 | R32 | Japan Women's Open | WTA 250 | Hard |
| Katerina Siniakova | 1-6 6-3 6-4 | Peyton Stearns | Match data | Aug 23, 2024* | QF | Tennis In the Land | WTA 250 | Hard |
| Peyton Stearns | 7-6(7) 6-2 | Katerina Siniakova | Match data | May 30, 2023* | R128 | Roland Garros | Grand Slam | Clay |
Estimated match date where the exact historical date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 including documented historical predecessor categories | Finals | 500 including documented historical predecessor categories | 250 including documented historical predecessor categories | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Katerina Siniakova | #49 | #27 | 1,718 | 1,894 | 235 | 248 | 48.7% | 0 | 0 | 0 | 0 | 6 | 6 |
| Peyton Stearns | #37 | #28 | 1,756 | 1,917 | 77 | 78 | 49.7% | 0 | 0 | 0 | 0 | 2 | 2 |
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 | Peyton Stearns | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 17 | 2013 | 0–1 | 0.0% | #171 | 1,488 | 0 | 0 | — | — | — | — | — | — | — |
| 18 | 2014 | 4–6 | 40.0% | #84 | 1,521 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 2015 | 13–20 | 39.4% | #102 | 1,522 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 2016 | 18–18 | 50.0% | #52 | 1,765 | 0 | 0 | 2022 | 0–2 | 0.0% | #209 | 1,536 | 0 | 0 |
| 21 | 2017 | 23–23 | 50.0% | #49 | 1,695 | 0 | 2 | 2023 | 16–14 | 53.3% | #49 | 1,661 | 0 | 0 |
| 22 | 2018 | 26–22 | 54.2% | #31 | 1,779 | 0 | 2 | 2024 | 21–21 | 50.0% | #47 | 1,795 | 0 | 1 |
| 23 | 2019 | 20–28 | 41.7% | #58 | 1,674 | 0 | 2 | 2025 | 17–21 | 44.7% | #63 | 1,749 | 0 | 1 |
| 24 | 2020 | 6–13 | 31.6% | #59 | 1,701 | 0 | 2 | 2026 | 23–20 | 53.5% | #37 | 1,726 | 0 | 2 |
| 25 | 2021 | 22–17 | 56.4% | #49 | 1,802 | 0 | 2 | — | — | — | — | — | — | — |
| 26 | 2022 | 17–19 | 47.2% | #49 | 1,762 | 0 | 3 | — | — | — | — | — | — | — |
| 27 | 2023 | 22–17 | 56.4% | #45 | 1,807 | 0 | 5 | — | — | — | — | — | — | — |
| 28 | 2024 | 26–26 | 50.0% | #45 | 1,802 | 0 | 5 | — | — | — | — | — | — | — |
| 29 | 2025 | 17–20 | 45.9% | #48 | 1,884 | 0 | 5 | — | — | — | — | — | — | — |
| 30 | 2026 | 21–18 | 53.8% | #49 | 1,885 | 0 | 6 | — | — | — | — | — | — | — |
Seasons are aligned by the age each player spent most of that calendar year. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.
| Age | Katerina Siniakova | Peyton Stearns | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Yr | Hard | Clay | Grass | |||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |||
| 17 | 2013 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 2014 | 4 | 5 | 9 | 44.4% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2015 | 6 | 12 | 18 | 33.3% | 4 | 5 | 9 | 44.4% | 3 | 3 | 6 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2016 | 10 | 10 | 20 | 50.0% | 6 | 5 | 11 | 54.5% | 2 | 3 | 5 | 40.0% | 2022 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| 21 | 2017 | 12 | 14 | 26 | 46.2% | 10 | 6 | 16 | 62.5% | 1 | 3 | 4 | 25.0% | 2023 | 8 | 10 | 18 | 44.4% | 8 | 3 | 11 | 72.7% | 0 | 1 | 1 | 0.0% |
| 22 | 2018 | 17 | 14 | 31 | 54.8% | 7 | 6 | 13 | 53.8% | 2 | 2 | 4 | 50.0% | 2024 | 13 | 15 | 28 | 46.4% | 7 | 4 | 11 | 63.6% | 1 | 2 | 3 | 33.3% |
| 23 | 2019 | 10 | 18 | 28 | 35.7% | 9 | 7 | 16 | 56.3% | 1 | 3 | 4 | 25.0% | 2025 | 8 | 15 | 23 | 34.8% | 8 | 4 | 12 | 66.7% | 1 | 2 | 3 | 33.3% |
| 24 | 2020 | 1 | 9 | 10 | 10.0% | 5 | 4 | 9 | 55.6% | — | — | — | — | 2026 | 17 | 14 | 31 | 54.8% | 6 | 5 | 11 | 54.5% | 0 | 1 | 1 | 0.0% |
| 25 | 2021 | 9 | 12 | 21 | 42.9% | 7 | 3 | 10 | 70.0% | 6 | 2 | 8 | 75.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2022 | 11 | 11 | 22 | 50.0% | 6 | 5 | 11 | 54.5% | 0 | 3 | 3 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2023 | 16 | 14 | 30 | 53.3% | 0 | 1 | 1 | 0.0% | 6 | 2 | 8 | 75.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2024 | 17 | 17 | 34 | 50.0% | 4 | 6 | 10 | 40.0% | 5 | 3 | 8 | 62.5% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2025 | 14 | 11 | 25 | 56.0% | 0 | 5 | 5 | 0.0% | 3 | 4 | 7 | 42.9% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2026 | 15 | 11 | 26 | 57.7% | 4 | 4 | 8 | 50.0% | 2 | 3 | 5 | 40.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 142 | 159 | 301 | 47.2% | 62 | 58 | 120 | 51.7% | 31 | 31 | 62 | 50.0% | — | 46 | 56 | 102 | 45.1% | 29 | 16 | 45 | 64.4% | 2 | 6 | 8 | 25.0% |
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 455/486 of Katerina Siniakova's and 142/155 of Peyton Stearns's main draw matches. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.
| Age | Katerina Siniakova | Peyton Stearns | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | |
| 17 | 2013 | 1/1 | 5.0 | 11.0 | 61.3% | 56.1% | 38.9% | 50.0% | 71.4% | 49.5% | 44.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 18 | 2014 | 10/10 | 1.7 | 4.4 | 61.7% | 63.9% | 42.1% | 54.2% | 38.1% | 55.3% | 45.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 19 | 2015 | 26/33 | 1.7 | 5.5 | 66.1% | 62.0% | 50.4% | 53.7% | 47.1% | 58.1% | 41.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| 20 | 2016 | 34/37 | 2.7 | 4.0 | 58.7% | 63.5% | 43.7% | 51.7% | 50.0% | 55.3% | 43.5% | 2022 | 2/2 | 1.5 | 1.0 | 73.1% | 61.5% | 44.7% | 23.8% | 75.0% | 56.4% | 38.3% |
| 21 | 2017 | 45/46 | 2.2 | 3.8 | 62.4% | 61.8% | 42.4% | 54.6% | 49.1% | 54.7% | 43.6% | 2023 | 30/30 | 1.4 | 3.3 | 68.2% | 59.6% | 47.8% | 57.2% | 55.3% | 55.9% | 44.7% |
| 22 | 2018 | 48/48 | 4.2 | 4.0 | 59.3% | 64.0% | 45.4% | 48.7% | 46.8% | 56.4% | 43.2% | 2024 | 42/42 | 2.3 | 3.3 | 65.3% | 61.6% | 47.7% | 48.9% | 49.8% | 56.5% | 44.7% |
| 23 | 2019 | 47/48 | 2.8 | 2.9 | 60.4% | 62.6% | 46.1% | 50.1% | 46.4% | 56.0% | 45.3% | 2025 | 28/38 | 2.5 | 3.9 | 61.6% | 64.0% | 42.8% | 52.1% | 47.6% | 55.7% | 43.3% |
| 24 | 2020 | 19/19 | 1.7 | 3.1 | 65.8% | 55.8% | 42.7% | 50.3% | 46.1% | 51.4% | 40.6% | 2026 | 40/43 | 3.8 | 3.6 | 58.8% | 67.1% | 46.7% | 53.5% | 46.7% | 58.6% | 44.0% |
| 25 | 2021 | 39/39 | 1.7 | 5.9 | 61.3% | 64.5% | 45.4% | 54.1% | 55.5% | 57.2% | 46.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 26 | 2022 | 32/36 | 1.5 | 4.9 | 64.5% | 58.7% | 41.3% | 52.7% | 50.7% | 52.6% | 42.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 27 | 2023 | 38/39 | 2.3 | 5.1 | 62.6% | 62.5% | 44.4% | 45.2% | 43.9% | 55.8% | 45.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 28 | 2024 | 50/52 | 1.8 | 5.3 | 61.6% | 63.1% | 44.7% | 45.5% | 51.0% | 56.0% | 45.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| 29 | 2025 | 28/38 | 1.8 | 5.6 | 61.3% | 63.9% | 41.8% | 51.3% | 47.9% | 55.4% | 44.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 30 | 2026 | 38/40 | 1.8 | 4.4 | 61.1% | 64.8% | 46.1% | 58.4% | 46.4% | 57.5% | 45.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 455/486 | 2.3 | 4.5 | 61.7% | 62.6% | 44.5% | 51.2% | 48.4% | 55.7% | 44.4% | — | 142/155 | 2.6 | 3.5 | 63.5% | 63.2% | 46.4% | 52.2% | 50.0% | 56.8% | 44.2% |
Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.
| Age | Katerina Siniakova | Peyton Stearns | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | |
| 17 | 2013 | 1489 | 101.5 | -2.26 | +1.26 | 0.882 | 47.3% | — | — | — | 33.3% | -1.00 | 0–1 | — | — | -0.01 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 2014 | 1521 | 119.3 | -0.71 | -0.45 | 1.019 | 50.3% | +20 | — | — | 43.5% | -0.22 | 1–2 (33%) | 2–2 (50%) | 100.8 | +0.46 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2015 | 1523 | 112.2 | -0.42 | -0.27 | 0.987 | 49.9% | -25 | +16 | +104 | 41.3% | -0.43 | 4–5 (44%) | 3–6 (33%) | 96.6 | +0.31 | 2021 | 1489 | 102.9 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2016 | 1765 | 130.6 | -0.14 | +0.26 | 0.975 | 49.6% | -53 | -88 | -86 | 49.4% | -0.07 | 7–6 (54%) | 3–2 (60%) | 103.3 | -2.24 | 2022 | 1536 | 114.7 | +1.15 | +1.97 | 0.879 | 47.0% | — | — | — | 20.0% | -1.40 | 0–1 | — | — | -0.28 |
| 21 | 2017 | 1696 | 133.8 | -0.94 | +0.48 | 0.963 | 49.3% | -24 | +83 | -67 | 50.0% | -0.08 | 11–9 (55%) | 4–2 (67%) | 103.3 | -1.77 | 2023 | 1661 | 135.7 | -0.06 | +1.07 | 1.014 | 50.6% | -29 | +27 | — | 51.4% | +0.13 | 6–6 (50%) | 6–5 (55%) | 104.0 | -0.25 |
| 22 | 2018 | 1780 | 137.2 | -0.09 | +0.44 | 0.989 | 49.7% | -11 | -31 | -109 | 53.0% | +0.04 | 13–10 (57%) | 10–8 (56%) | 102.2 | +0.17 | 2024 | 1796 | 144.2 | +0.66 | +0.98 | 1.029 | 50.7% | -42 | -8 | -224 | 51.6% | +0.25 | 6–11 (35%) | 6–9 (40%) | 94.8 | -1.28 |
| 23 | 2019 | 1675 | 133.8 | -0.07 | +1.87 | 1.029 | 50.5% | -18 | +95 | -38 | 42.3% | -0.28 | 8–11 (42%) | 5–5 (50%) | 96.9 | -0.29 | 2025 | 1750 | 142.5 | -0.84 | +0.47 | 0.977 | 49.6% | -61 | +122 | -239 | 46.2% | -0.35 | 7–8 (47%) | 7–4 (64%) | 100.3 | -1.29 |
| 24 | 2020 | 1701 | 130.6 | -3.03 | -0.58 | 0.836 | 46.1% | -49 | +82 | — | 33.3% | -1.10 | 2–2 (50%) | 2–0 | — | -1.42 | 2026 | 1727 | 141.2 | +0.85 | +0.80 | 1.064 | 51.2% | -8 | +107 | — | 55.0% | +0.39 | 5–9 (36%) | 7–3 (70%) | 97.6 | +0.38 |
| 25 | 2021 | 1802 | 145.0 | +1.25 | +3.21 | 1.089 | 51.8% | -109 | +51 | -13 | 54.7% | +0.44 | 9–8 (53%) | 8–3 (73%) | 107.7 | -2.85 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2022 | 1763 | 133.3 | -2.97 | +0.63 | 0.904 | 47.8% | -22 | +55 | -75 | 46.2% | -0.36 | 8–6 (57%) | 3–3 (50%) | 101.6 | -1.47 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2023 | 1808 | 135.0 | -0.13 | +2.23 | 1.035 | 50.6% | -25 | — | -7 | 55.8% | +0.38 | 4–5 (44%) | 5–6 (45%) | 98.4 | -1.66 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2024 | 1803 | 141.8 | -0.23 | +2.61 | 1.042 | 50.8% | -30 | -33 | +120 | 55.1% | +0.39 | 7–13 (35%) | 4–8 (33%) | 87.5 | -1.28 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2025 | 1884 | 142.0 | -0.67 | +0.92 | 1.002 | 50.0% | +18 | -218 | +71 | 48.8% | -0.13 | 4–8 (33%) | 5–4 (56%) | 94.0 | -1.51 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2026 | 1885 | 148.7 | +0.48 | +2.64 | 1.073 | 51.5% | +26 | -200 | +18 | 55.4% | +0.31 | 6–9 (40%) | 4–4 (50%) | 96.2 | -1.28 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1895 | 142.0 | -0.43 | +1.33 | 1.002 | 50.0% | -22 | +4 | +8 | 49.6% | -0.02 | 84–95 (47%) | 58–53 (52%) | 97.8 | -3.09 | — | 1917 | 144.4 | +0.27 | +0.86 | 1.023 | 50.6% | -33 | +63 | -232 | 50.7% | +0.09 | 24–35 (41%) | 26–21 (55%) | 98.3 | -1.75 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Ekaterina Alexandrova | 3 | 5 | 8 | Sep 20, 2025 | H2H |
| Daria Kasatkina | 2 | 6 | 8 | Sep 18, 2025 | H2H |
| Elena Rybakina | 3 | 5 | 8 | Jun 19, 2025 | H2H |
| Kristina Mladenovic | 4 | 4 | 8 | Apr 23, 2021 | H2H |
| Jessica Pegula | 1 | 6 | 7 | Jun 17, 2026 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Daria Kasatkina | 2 | 5 | 7 | May 19, 2026 | H2H |
| Katerina Siniakova | 1 | 2 | 3 | Oct 20, 2026 | H2H |
| Sloane Stephens | 1 | 2 | 3 | Sep 18, 2026 | H2H |
| Clara Tauson | 1 | 2 | 3 | Aug 16, 2026 | H2H |
| Madison Keys | 2 | 1 | 3 | May 8, 2026 | H2H |