H2H data updated: 2026-10-29 00:00 UTC
Ekaterina Alexandrova holds a 3–1 lead over Marta Kostyuk in their WTA head-to-head. Across 4 main-draw meetings, Ekaterina Alexandrova leads 2–1 on hard courts and 1–0 on clay. Most recently, Ekaterina Alexandrova won the 2026 Ningbo Open second round 6-4 0-0.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Ekaterina Alexandrova | 6-4 (ret.) | Marta Kostyuk | Match data | Oct 21, 2026 | R16 | Ningbo Open | WTA 500 | Hard |
| Marta Kostyuk | 6-3 6-2 | Ekaterina Alexandrova | Match data | Sep 4, 2026 | R32 | US Open | Grand Slam | Hard |
| Ekaterina Alexandrova | 7-6(5) 5-7 7-5 | Marta Kostyuk | Match data | Sep 15, 2022* | R32 | Portoroz | WTA 250 | Hard |
| Ekaterina Alexandrova | 6-3 6-1 | Marta Kostyuk | Match data | May 12, 2021* | R64 | Italian Open | WTA 1000 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ekaterina Alexandrova | #33 | #10 | 3,375 | 1,985 | 256 | 201 | 56.0% | 0 | 0 | 0 | 1 | 4 | 5 |
| Marta Kostyuk | #10 | #10 | 4,040 | 2,109 | 162 | 120 | 57.4% | 0 | 1 | 0 | 0 | 2 | 3 |
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 | Marta Kostyuk | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | — | — | — | — | — | — | — | 2018 | 3–5 | 37.5% | #119 | 1,515 | 0 | 0 |
| 17 | — | — | — | — | — | — | — | 2019 | 2–3 | 40.0% | #153 | 1,615 | 0 | 0 |
| 18 | — | — | — | — | — | — | — | 2020 | 2–5 | 28.6% | #99 | 1,661 | 0 | 0 |
| 19 | — | — | — | — | — | — | — | 2021 | 19–16 | 54.3% | #50 | 1,739 | 0 | 0 |
| 20 | — | — | — | — | — | — | — | 2022 | 16–20 | 44.4% | #69 | 1,754 | 0 | 0 |
| 21 | 2016 | 3–4 | 42.9% | #109 | 1,635 | 0 | 0 | 2023 | 23–20 | 53.5% | #39 | 1,810 | 0 | 1 |
| 22 | 2017 | 6–12 | 33.3% | #95 | 1,555 | 0 | 0 | 2024 | 36–20 | 64.3% | #18 | 1,889 | 0 | 1 |
| 23 | 2018 | 9–13 | 40.9% | #73 | 1,679 | 0 | 0 | 2025 | 25–19 | 56.8% | #26 | 1,889 | 0 | 1 |
| 24 | 2019 | 30–24 | 55.6% | #35 | 1,785 | 0 | 0 | 2026 | 36–12 | 75.0% | #10 | 2,008 | 0 | 3 |
| 25 | 2020 | 19–12 | 61.3% | #33 | 1,797 | 0 | 1 | — | — | — | — | — | — | — |
| 26 | 2021 | 26–21 | 55.3% | #34 | 1,796 | 0 | 1 | — | — | — | — | — | — | — |
| 27 | 2022 | 33–18 | 64.7% | #19 | 1,906 | 0 | 3 | — | — | — | — | — | — | — |
| 28 | 2023 | 34–22 | 60.7% | #21 | 1,869 | 0 | 4 | — | — | — | — | — | — | — |
| 29 | 2024 | 26–24 | 52.0% | #28 | 1,769 | 0 | 4 | — | — | — | — | — | — | — |
| 30 | 2025 | 47–25 | 65.3% | #10 | 1,948 | 0 | 5 | — | — | — | — | — | — | — |
| 31 | 2026 | 23–26 | 46.9% | #33 | 1,867 | 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 | Marta Kostyuk | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2018 | 2 | 2 | 4 | 50.0% | 1 | 2 | 3 | 33.3% | 0 | 1 | 1 | 0.0% |
| 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2019 | 0 | 1 | 1 | 0.0% | 2 | 2 | 4 | 50.0% | — | — | — | — |
| 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2020 | 2 | 3 | 5 | 40.0% | 0 | 2 | 2 | 0.0% | — | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2021 | 11 | 10 | 21 | 52.4% | 6 | 3 | 9 | 66.7% | 2 | 3 | 5 | 40.0% |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2022 | 12 | 14 | 26 | 46.2% | 1 | 4 | 5 | 20.0% | 3 | 2 | 5 | 60.0% |
| 21 | 2016 | 2 | 2 | 4 | 50.0% | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | 2023 | 20 | 15 | 35 | 57.1% | 1 | 3 | 4 | 25.0% | 2 | 2 | 4 | 50.0% |
| 22 | 2017 | 4 | 6 | 10 | 40.0% | 2 | 5 | 7 | 28.6% | 0 | 1 | 1 | 0.0% | 2024 | 26 | 12 | 38 | 68.4% | 8 | 5 | 13 | 61.5% | 2 | 3 | 5 | 40.0% |
| 23 | 2018 | 8 | 6 | 14 | 57.1% | 1 | 5 | 6 | 16.7% | 0 | 2 | 2 | 0.0% | 2025 | 19 | 13 | 32 | 59.4% | 6 | 3 | 9 | 66.7% | 0 | 3 | 3 | 0.0% |
| 24 | 2019 | 22 | 16 | 38 | 57.9% | 3 | 4 | 7 | 42.9% | 5 | 4 | 9 | 55.6% | 2026 | 15 | 10 | 25 | 60.0% | 16 | 1 | 17 | 94.1% | 5 | 1 | 6 | 83.3% |
| 25 | 2020 | 15 | 7 | 22 | 68.2% | 4 | 5 | 9 | 44.4% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2021 | 16 | 14 | 30 | 53.3% | 7 | 5 | 12 | 58.3% | 3 | 2 | 5 | 60.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2022 | 16 | 12 | 28 | 57.1% | 11 | 5 | 16 | 68.8% | 6 | 1 | 7 | 85.7% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2023 | 17 | 15 | 32 | 53.1% | 6 | 5 | 11 | 54.5% | 11 | 2 | 13 | 84.6% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | 17 | 17 | 34 | 50.0% | 1 | 5 | 6 | 16.7% | 5 | 4 | 9 | 55.6% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 159 | 126 | 285 | 55.8% | 53 | 52 | 105 | 50.5% | 44 | 23 | 67 | 65.7% | — | 107 | 80 | 187 | 57.2% | 41 | 25 | 66 | 62.1% | 14 | 15 | 29 | 48.3% |
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 424/457 of Ekaterina Alexandrova's and 264/282 of Marta Kostyuk'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 | Marta Kostyuk | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | |
| 16 | — | —/— | — | — | — | — | — | — | — | — | — | 2018 | 8/8 | 4.8 | 6.9 | 54.1% | 68.7% | 45.4% | 47.7% | 63.8% | 57.4% | 40.3% |
| 17 | — | —/— | — | — | — | — | — | — | — | — | — | 2019 | 5/5 | 2.6 | 3.6 | 60.9% | 63.8% | 47.8% | 48.7% | 44.7% | 57.2% | 45.0% |
| 18 | — | —/— | — | — | — | — | — | — | — | — | — | 2020 | 7/7 | 3.6 | 5.3 | 62.0% | 64.8% | 43.4% | 60.9% | 35.8% | 56.2% | 42.0% |
| 19 | — | —/— | — | — | — | — | — | — | — | — | — | 2021 | 35/35 | 2.7 | 3.9 | 62.7% | 61.9% | 45.2% | 51.6% | 45.5% | 55.6% | 44.0% |
| 20 | — | —/— | — | — | — | — | — | — | — | — | — | 2022 | 35/36 | 3.4 | 5.3 | 60.8% | 64.4% | 41.0% | 48.5% | 40.3% | 55.5% | 42.6% |
| 21 | 2016 | 7/7 | 5.7 | 4.7 | 55.9% | 69.2% | 50.7% | 46.0% | 45.8% | 60.7% | 41.8% | 2023 | 43/43 | 3.1 | 6.0 | 57.0% | 66.3% | 43.4% | 48.0% | 49.1% | 56.5% | 43.6% |
| 22 | 2017 | 18/18 | 4.1 | 5.8 | 53.4% | 65.3% | 38.3% | 48.1% | 51.6% | 52.4% | 40.9% | 2024 | 50/56 | 3.0 | 6.8 | 57.2% | 65.8% | 44.1% | 52.9% | 53.3% | 56.6% | 44.8% |
| 23 | 2018 | 22/22 | 5.6 | 5.5 | 54.6% | 66.2% | 39.4% | 54.1% | 39.9% | 53.9% | 41.4% | 2025 | 34/44 | 3.0 | 5.8 | 59.5% | 67.7% | 46.0% | 62.0% | 49.1% | 58.9% | 45.1% |
| 24 | 2019 | 53/54 | 5.9 | 5.3 | 56.9% | 69.7% | 44.6% | 52.1% | 51.0% | 58.8% | 45.4% | 2026 | 47/48 | 3.8 | 4.1 | 58.1% | 70.9% | 47.6% | 57.8% | 53.0% | 61.1% | 46.8% |
| 25 | 2020 | 30/31 | 4.1 | 4.3 | 61.1% | 68.5% | 44.5% | 50.4% | 50.8% | 59.1% | 45.1% | — | —/— | — | — | — | — | — | — | — | — | — |
| 26 | 2021 | 44/47 | 5.0 | 5.0 | 57.5% | 71.4% | 45.7% | 53.1% | 46.4% | 60.3% | 44.2% | — | —/— | — | — | — | — | — | — | — | — | — |
| 27 | 2022 | 51/51 | 4.7 | 5.9 | 57.0% | 72.5% | 47.6% | 52.4% | 54.3% | 61.7% | 45.5% | — | —/— | — | — | — | — | — | — | — | — | — |
| 28 | 2023 | 54/56 | 4.9 | 6.6 | 56.8% | 69.8% | 46.3% | 57.9% | 52.2% | 59.6% | 43.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| 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 | 47/49 | 4.6 | 4.7 | 56.9% | 68.7% | 47.6% | 60.2% | 42.5% | 59.5% | 41.7% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 424/457 | 5.0 | 5.3 | 57.8% | 69.7% | 45.2% | 54.7% | 48.9% | 59.3% | 43.7% | — | 264/282 | 3.2 | 5.4 | 58.9% | 66.3% | 44.7% | 53.3% | 49.0% | 57.4% | 44.4% |
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 | Marta Kostyuk | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2017 | 1483 | 97.0 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2018 | 1516 | 118.7 | -0.89 | -0.21 | 0.947 | 49.5% | -2 | +68 | — | 44.4% | -0.33 | 0–2 | — | — | +0.60 |
| 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2019 | 1616 | 118.9 | -1.57 | +1.09 | 1.053 | 50.9% | — | +68 | — | 53.8% | +0.23 | 0–3 (0%) | — | — | -0.05 |
| 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2020 | 1662 | 127.8 | -0.40 | -0.50 | 0.959 | 49.2% | -3 | — | — | 37.5% | -0.88 | 0–2 | 2–1 (67%) | — | -0.16 |
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2021 | 1740 | 135.9 | -0.54 | +0.60 | 0.990 | 49.9% | -34 | +8 | -154 | 53.2% | +0.27 | 4–5 (44%) | 3–5 (38%) | 98.1 | -0.69 |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2022 | 1754 | 134.9 | -0.66 | +0.17 | 0.957 | 49.2% | +1 | -64 | -136 | 46.5% | -0.19 | 8–8 (50%) | 5–4 (56%) | 99.5 | -1.22 |
| 21 | 2016 | 1635 | 112.6 | +0.04 | -0.90 | 1.063 | 50.9% | -3 | — | — | 50.0% | +0.25 | 0–2 | 2–2 (50%) | — | +0.11 | 2023 | 1811 | 147.7 | +0.01 | +1.37 | 1.002 | 50.2% | +7 | -145 | -163 | 51.0% | +0.05 | 10–8 (56%) | 9–5 (64%) | 103.7 | -1.77 |
| 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%) | — | -0.05 | 2024 | 1890 | 152.6 | +0.62 | +2.38 | 1.033 | 50.9% | +29 | -120 | -213 | 57.5% | +0.47 | 16–5 (76%) | 11–6 (65%) | 113.1 | -0.25 |
| 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 | 2025 | 1889 | 156.7 | +2.04 | +2.03 | 1.097 | 51.9% | +46 | -51 | -328 | 55.2% | +0.57 | 9–8 (53%) | 3–8 (27%) | 96.3 | +1.53 |
| 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 | -0.40 | 2026 | 2008 | 165.8 | +4.21 | +4.70 | 1.202 | 54.0% | -66 | +96 | -229 | 69.4% | +1.52 | 10–5 (67%) | 4–6 (40%) | 102.1 | -2.48 |
| 25 | 2020 | 1797 | 144.5 | +1.94 | +1.67 | 1.103 | 52.0% | +46 | -246 | — | 58.0% | +0.55 | 5–4 (56%) | 2–4 (33%) | 101.2 | -0.35 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2023 | 1870 | 145.5 | +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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | +146 | 63.8% | +1.26 | 9–11 (45%) | 6–13 (32%) | 93.6 | -0.06 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 2026 | 1867 | 146.9 | +2.20 | -0.06 | 1.028 | 50.7% | +5 | -82 | +115 | 49.1% | +0.05 | 7–13 (35%) | 5–10 (33%) | 90.6 | +1.10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1985 | 149.9 | +2.44 | +1.17 | 1.073 | 51.4% | +1 | -112 | +70 | 54.9% | +0.45 | 71–79 (47%) | 55–80 (41%) | 94.2 | -0.13 | — | 2109 | 153.3 | +0.90 | +1.88 | 1.042 | 51.0% | +2 | -12 | -197 | 55.2% | +0.42 | 57–46 (55%) | 37–35 (51%) | 103.9 | -1.62 |
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 |
|---|---|---|---|---|---|
| Daria Kasatkina | 4 | 4 | 8 | Jul 31, 2025 | H2H |
| Jessica Pegula | 3 | 4 | 7 | Apr 26, 2026 | H2H |
| Coco Gauff | 2 | 4 | 6 | Aug 22, 2026 | H2H |
| Elena Rybakina | 1 | 5 | 6 | Mar 22, 2026 | H2H |
| Maria Sakkari | 2 | 3 | 5 | Oct 13, 2026 | H2H |