H2H data updated: 2026-09-13 00:00 UTC
Ekaterina Alexandrova holds a 2–0 lead over Kimberly Birrell in their WTA head-to-head. Across 2 main-draw meetings, Ekaterina Alexandrova leads 1–0 on grass and 1–0 on hard courts. Most recently, Ekaterina Alexandrova won the 2026 US Open second round 6-1 2-6 6-3.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Ekaterina Alexandrova | 6-1 2-6 6-3 | Kimberly Birrell | Match data | Sep 2, 2026 | R64 | US Open | Grand Slam | Hard |
| Ekaterina Alexandrova | 6-4 7-6(3) | Kimberly Birrell | Match data | Jun 16, 2023* | R16 | Libéma Open | WTA 250 | Grass |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ekaterina Alexandrova | #19 | #10 | 3,375 | 1,984 | 250 | 197 | 55.9% | 0 | 0 | 0 | 1 | 4 | 5 |
| Kimberly Birrell | #71 | #60 | 999 | 1,834 | 48 | 62 | 43.6% | 0 | 0 | 0 | 0 | 0 | 0 |
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 | Ekaterina Alexandrova | Kimberly Birrell | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 18 | — | — | — | — | — | — | — | 2016 | 1–2 | 33.3% | #516 | 1,508 | 0 | 0 |
| 21 | 2016 | 3–4 | 42.9% | #109 | 1,635 | 0 | 0 | 2019 | 3–2 | 60.0% | #250 | 1,516 | 0 | 0 |
| 22 | 2017 | 6–12 | 33.3% | #95 | 1,554 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | 2018 | 9–13 | 40.9% | #73 | 1,679 | 0 | 0 | 2021 | 2–3 | 40.0% | #741 | 1,517 | 0 | 0 |
| 24 | 2019 | 30–24 | 55.6% | #35 | 1,785 | 0 | 0 | 2022 | 1–1 | 50.0% | #174 | 1,486 | 0 | 0 |
| 25 | 2020 | 19–12 | 61.3% | #33 | 1,797 | 0 | 1 | 2023 | 8–10 | 44.4% | #115 | 1,557 | 0 | 0 |
| 26 | 2021 | 26–21 | 55.3% | #34 | 1,795 | 0 | 1 | 2024 | 7–8 | 46.7% | #113 | 1,688 | 0 | 0 |
| 27 | 2022 | 33–18 | 64.7% | #19 | 1,906 | 0 | 3 | 2025 | 14–18 | 43.8% | #98 | 1,678 | 0 | 0 |
| 28 | 2023 | 34–22 | 60.7% | #21 | 1,869 | 0 | 4 | 2026 | 12–18 | 40.0% | #71 | 1,695 | 0 | 0 |
| 29 | 2024 | 26–24 | 52.0% | #28 | 1,768 | 0 | 4 | — | — | — | — | — | — | — |
| 30 | 2025 | 47–25 | 65.3% | #10 | 1,948 | 0 | 5 | — | — | — | — | — | — | — |
| 31 | 2026 | 17–22 | 43.6% | #19 | 1,830 | 0 | 5 | — | — | — | — | — | — | — |
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 | Ekaterina Alexandrova | Kimberly Birrell | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2016 | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — |
| 21 | 2016 | 2 | 2 | 4 | 50.0% | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | 2019 | 3 | 2 | 5 | 60.0% | — | — | — | — | — | — | — | — |
| 22 | 2017 | 4 | 6 | 10 | 40.0% | 2 | 5 | 7 | 28.6% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2018 | 8 | 6 | 14 | 57.1% | 1 | 5 | 6 | 16.7% | 0 | 2 | 2 | 0.0% | 2021 | 2 | 3 | 5 | 40.0% | — | — | — | — | — | — | — | — |
| 24 | 2019 | 22 | 16 | 38 | 57.9% | 3 | 4 | 7 | 42.9% | 5 | 4 | 9 | 55.6% | 2022 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — |
| 25 | 2020 | 15 | 7 | 22 | 68.2% | 4 | 5 | 9 | 44.4% | — | — | — | — | 2023 | 6 | 7 | 13 | 46.2% | 1 | 2 | 3 | 33.3% | 1 | 1 | 2 | 50.0% |
| 26 | 2021 | 16 | 14 | 30 | 53.3% | 7 | 5 | 12 | 58.3% | 3 | 2 | 5 | 60.0% | 2024 | 5 | 7 | 12 | 41.7% | — | — | — | — | 2 | 1 | 3 | 66.7% |
| 27 | 2022 | 16 | 12 | 28 | 57.1% | 11 | 5 | 16 | 68.8% | 6 | 1 | 7 | 85.7% | 2025 | 13 | 12 | 25 | 52.0% | 0 | 3 | 3 | 0.0% | 1 | 3 | 4 | 25.0% |
| 28 | 2023 | 17 | 15 | 32 | 53.1% | 6 | 5 | 11 | 54.5% | 11 | 2 | 13 | 84.6% | 2026 | 9 | 12 | 21 | 42.9% | 1 | 2 | 3 | 33.3% | 2 | 4 | 6 | 33.3% |
| 29 | 2024 | 20 | 14 | 34 | 58.8% | 1 | 7 | 8 | 12.5% | 5 | 3 | 8 | 62.5% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2025 | 22 | 17 | 39 | 56.4% | 17 | 5 | 22 | 77.3% | 8 | 3 | 11 | 72.7% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 2026 | 11 | 13 | 24 | 45.8% | 1 | 5 | 6 | 16.7% | 5 | 4 | 9 | 55.6% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 153 | 122 | 275 | 55.6% | 53 | 52 | 105 | 50.5% | 44 | 23 | 67 | 65.7% | — | 40 | 46 | 86 | 46.5% | 2 | 7 | 9 | 22.2% | 6 | 9 | 15 | 40.0% |
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 414/447 of Ekaterina Alexandrova's and 93/111 of Kimberly Birrell'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 | Ekaterina Alexandrova | Kimberly Birrell | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | |
| 18 | — | —/— | — | — | — | — | — | — | — | — | — | 2016 | 3/3 | 2.0 | 2.0 | 62.8% | 47.3% | 53.1% | 47.6% | 50.0% | 50.4% | 31.6% |
| 21 | 2016 | 7/7 | 5.7 | 4.7 | 55.9% | 69.2% | 50.7% | 46.0% | 45.8% | 60.7% | 41.8% | 2019 | 5/5 | 2.6 | 4.8 | 62.8% | 63.4% | 36.3% | 60.9% | 38.9% | 53.5% | 39.6% |
| 22 | 2017 | 18/18 | 4.1 | 5.8 | 53.4% | 65.3% | 38.3% | 48.1% | 51.6% | 52.4% | 40.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| 23 | 2018 | 22/22 | 5.6 | 5.5 | 54.6% | 66.2% | 39.4% | 54.1% | 39.9% | 53.9% | 41.4% | 2021 | 5/5 | 2.6 | 3.6 | 64.2% | 63.4% | 42.2% | 53.1% | 44.5% | 55.8% | 41.1% |
| 24 | 2019 | 53/54 | 5.9 | 5.3 | 56.9% | 69.7% | 44.6% | 52.1% | 51.0% | 58.8% | 45.4% | 2022 | 2/2 | 1.5 | 8.0 | 56.7% | 55.4% | 42.7% | 42.3% | 23.2% | 49.9% | 40.8% |
| 25 | 2020 | 30/31 | 4.1 | 4.3 | 61.1% | 68.5% | 44.5% | 50.4% | 50.8% | 59.1% | 45.1% | 2023 | 18/18 | 1.6 | 4.4 | 60.7% | 62.1% | 44.2% | 52.1% | 49.4% | 55.1% | 45.2% |
| 26 | 2021 | 44/47 | 5.0 | 5.0 | 57.5% | 71.4% | 45.7% | 53.1% | 46.4% | 60.3% | 44.2% | 2024 | 15/15 | 2.2 | 3.5 | 64.0% | 63.3% | 47.4% | 52.6% | 48.1% | 57.6% | 40.8% |
| 27 | 2022 | 51/51 | 4.7 | 5.9 | 57.0% | 72.5% | 47.6% | 52.4% | 54.3% | 61.7% | 45.5% | 2025 | 17/32 | 2.1 | 6.4 | 59.2% | 64.9% | 40.0% | 53.6% | 42.7% | 54.7% | 39.2% |
| 28 | 2023 | 54/56 | 4.9 | 6.6 | 56.8% | 69.8% | 46.3% | 57.9% | 52.2% | 59.6% | 43.0% | 2026 | 28/31 | 1.9 | 5.8 | 63.5% | 62.5% | 40.7% | 48.0% | 56.5% | 54.5% | 41.3% |
| 29 | 2024 | 49/50 | 5.7 | 5.7 | 58.3% | 70.3% | 43.3% | 59.8% | 48.5% | 59.3% | 40.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| 30 | 2025 | 49/72 | 4.9 | 4.4 | 62.4% | 69.7% | 46.0% | 53.7% | 48.4% | 60.8% | 46.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 31 | 2026 | 37/39 | 4.7 | 4.6 | 58.1% | 68.1% | 45.9% | 58.7% | 40.4% | 58.7% | 41.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 414/447 | 5.1 | 5.3 | 57.9% | 69.7% | 45.0% | 54.4% | 48.9% | 59.2% | 43.7% | — | 93/111 | 2.0 | 5.0 | 62.1% | 62.5% | 42.6% | 51.4% | 48.7% | 54.9% | 41.2% |
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 | Ekaterina Alexandrova | Kimberly Birrell | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2016 | 1509 | 103.2 | -0.55 | -0.09 | 0.637 | 40.5% | +9 | — | — | 33.3% | -1.67 | — | — | — | -0.35 |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2018 | 1476 | 98.5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2016 | 1635 | 112.5 | +0.04 | -0.90 | 1.063 | 50.9% | -4 | — | — | 50.0% | +0.25 | 0–2 | 2–2 (50%) | — | +0.11 | 2019 | 1516 | 110.7 | -0.48 | -1.55 | 0.850 | 46.8% | +33 | — | — | 50.0% | -0.33 | 2–0 | 1–0 | — | -0.02 |
| 22 | 2017 | 1555 | 110.1 | -2.10 | -1.47 | 0.860 | 46.9% | 0 | -11 | — | 39.5% | -0.93 | 2–5 (29%) | 2–1 (67%) | — | -0.04 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2018 | 1680 | 121.1 | -1.75 | -1.67 | 0.899 | 47.6% | +35 | -187 | — | 45.1% | -0.61 | 2–5 (29%) | 3–2 (60%) | 98.7 | -0.71 | 2021 | 1518 | 104.1 | -2.12 | -0.93 | 0.929 | 49.0% | +30 | — | — | 36.4% | -1.09 | 1–0 | 0–1 | — | +0.48 |
| 24 | 2019 | 1785 | 139.8 | +1.93 | +2.15 | 1.101 | 51.8% | +4 | -289 | -122 | 52.8% | +0.44 | 11–8 (58%) | 2–11 (15%) | 97.7 | -0.39 | 2022 | 1486 | 95.4 | -2.40 | +1.40 | 0.815 | 45.9% | — | — | — | 40.0% | -1.40 | 1–0 | — | — | +0.14 |
| 25 | 2020 | 1797 | 144.5 | +1.94 | +1.67 | 1.103 | 52.0% | +45 | -246 | — | 58.0% | +0.55 | 5–4 (56%) | 2–4 (33%) | 101.2 | -0.35 | 2023 | 1557 | 123.2 | -1.73 | +1.11 | 1.007 | 50.1% | +43 | -88 | — | 46.2% | -0.08 | 1–2 (33%) | 3–2 (60%) | 100.5 | +0.87 |
| 26 | 2021 | 1796 | 144.4 | +3.82 | +1.85 | 1.115 | 52.0% | +7 | -167 | -96 | 53.5% | +0.49 | 5–6 (45%) | 2–12 (14%) | 94.0 | -1.01 | 2024 | 1689 | 122.0 | +0.40 | -1.41 | 0.962 | 49.5% | +9 | — | -77 | 43.3% | -0.43 | 1–1 | 0–4 (0%) | — | +0.83 |
| 27 | 2022 | 1907 | 148.8 | +4.62 | +2.63 | 1.190 | 53.2% | -60 | -87 | -63 | 60.5% | +0.97 | 11–8 (58%) | 9–8 (53%) | 105.0 | -0.98 | 2025 | 1679 | 134.0 | -1.71 | -2.60 | 0.866 | 46.9% | +54 | -259 | -143 | 44.7% | -0.36 | 6–6 (50%) | 5–6 (45%) | 97.7 | -0.02 |
| 28 | 2023 | 1870 | 145.6 | +2.73 | +0.84 | 1.064 | 51.3% | -35 | -63 | +128 | 58.2% | +0.50 | 9–7 (56%) | 13–7 (65%) | 104.1 | -0.23 | 2026 | 1695 | 133.4 | -1.46 | -0.89 | 0.908 | 48.1% | +45 | -271 | -78 | 42.7% | -0.55 | 7–8 (47%) | 3–7 (30%) | 96.3 | -0.67 |
| 29 | 2024 | 1769 | 145.7 | +2.24 | -1.13 | 0.993 | 49.9% | +68 | -125 | +254 | 51.7% | +0.10 | 10–10 (50%) | 9–10 (47%) | 99.4 | +2.01 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2025 | 1949 | 163.0 | +3.77 | +4.05 | 1.194 | 53.6% | -29 | -31 | +157 | 63.8% | +1.26 | 9–11 (45%) | 6–13 (32%) | 93.6 | -0.04 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 2026 | 1831 | 139.1 | +1.36 | -0.71 | 0.993 | 50.1% | +3 | -44 | +158 | 46.2% | -0.15 | 6–10 (38%) | 5–7 (42%) | 93.6 | +1.72 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1984 | 149.2 | +2.37 | +1.14 | 1.071 | 51.3% | +1 | -110 | +78 | 54.8% | +0.45 | 70–76 (48%) | 55–77 (42%) | 95.2 | +0.02 | — | 1835 | 128.4 | -1.23 | -0.86 | 0.914 | 48.2% | +39 | -206 | -98 | 43.7% | -0.46 | 19–17 (53%) | 12–20 (38%) | 96.8 | +1.15 |
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 |
|---|---|---|---|---|---|
| Jelena Ostapenko | 4 | 6 | 10 | Feb 10, 2026 | H2H |
| Veronika Kudermetova | 6 | 4 | 10 | Jun 13, 2025 | H2H |
| Aryna Sabalenka | 4 | 5 | 9 | Aug 8, 2026 | H2H |
| Belinda Bencic | 4 | 5 | 9 | Jul 7, 2025 | H2H |
| Iga Swiatek | 2 | 6 | 8 | Sep 21, 2025 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Donna Vekic | 2 | 2 | 4 | Oct 31, 2025 | H2H |
| Petra Marcinko | 2 | 1 | 3 | Aug 30, 2026 | H2H |
| Ann Li | 0 | 3 | 3 | Jun 16, 2026 | H2H |
| Victoria Mboko | 0 | 3 | 3 | Mar 6, 2026 | H2H |
| Anastasia Potapova | 3 | 0 | 3 | Jan 13, 2026 | H2H |