H2H data updated: 2026-10-29 00:00 UTC

Marta Kostyuk vs Ann Li H2H: 2-0

Marta Kostyuk holds a 2–0 lead over Ann Li in their WTA head-to-head. Across 2 main-draw meetings, Marta Kostyuk leads 1–0 on clay and 1–0 on hard courts. Most recently, Marta Kostyuk won the 2026 Rouen Open quarterfinal 6-0 6-7(4) 6-3.

Ukraine Age 24 Right-Handed 175 cm / 5'9"
H2H
2 – 0
2 main-draw meetings
United States Age 26 Right-Handed 170 cm / 5'7"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Marta Kostyuk #28 6-0 6-7(4) 6-3 Ann Li #36 Match data Apr 17, 2026 QF Rouen Open WTA 250 Clay
Marta Kostyuk #34 6-4 4-6 6-2 Ann Li #167 Match data Feb 29, 2024* R32 San Diego WTA 500 Hard

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.

Career Comparison

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
Marta Kostyuk #10 #10 4,040 2,109 162 120 57.4% 0 1 0 0 2 3
Ann Li #31 #25 1,833 1,896 103 90 53.4% 0 0 0 0 2 2

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 Marta Kostyuk Ann Li
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
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 2020 3–4 42.9% #98 1,613 0 0
21 2023 23–20 53.5% #39 1,810 0 1 2021 19–10 65.5% #47 1,755 0 1
22 2024 36–20 64.3% #18 1,889 0 1 2022 11–16 40.7% #129 1,666 0 1
23 2025 25–19 56.8% #26 1,889 0 1 2023 1–4 20.0% #169 1,668 0 1
24 2026 36–12 75.0% #10 2,008 0 3 2024 7–5 58.3% #96 1,706 0 1
25 — — — — — — — 2025 30–24 55.6% #38 1,813 0 2
26 — — — — — — — 2026 32–27 54.2% #31 1,861 0 2

Surface Results by Age

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 Marta Kostyuk Ann Li
Yr HardClayGrass Yr HardClayGrass
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% 2020 3 4 7 42.9% — — — — — — — —
21 2023 20 15 35 57.1% 1 3 4 25.0% 2 2 4 50.0% 2021 17 7 24 70.8% 1 1 2 50.0% 1 2 3 33.3%
22 2024 26 12 38 68.4% 8 5 13 61.5% 2 3 5 40.0% 2022 8 11 19 42.1% 0 1 1 0.0% 3 4 7 42.9%
23 2025 19 13 32 59.4% 6 3 9 66.7% 0 3 3 0.0% 2023 1 4 5 20.0% — — — — — — — —
24 2026 15 10 25 60.0% 16 1 17 94.1% 5 1 6 83.3% 2024 5 4 9 55.6% 2 1 3 66.7% — — — —
25 — — — — — — — — — — — — — 2025 21 15 36 58.3% 7 6 13 53.8% 2 3 5 40.0%
26 — — — — — — — — — — — — — 2026 21 18 39 53.8% 9 6 15 60.0% 2 3 5 40.0%
Career — 107 80 187 57.2% 41 25 66 62.1% 14 15 29 48.3% — 76 63 139 54.7% 19 15 34 55.9% 8 12 20 40.0%

Performance Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 264/282 of Marta Kostyuk's and 177/194 of Ann Li'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 Marta Kostyuk Ann Li
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% 2020 7/7 1.6 1.4 65.4% 60.3% 45.8% 47.0% 36.5% 55.3% 40.2%
21 2023 43/43 3.1 6.0 57.0% 66.3% 43.4% 48.0% 49.1% 56.5% 43.6% 2021 29/29 2.0 2.8 60.3% 63.9% 50.2% 57.1% 48.1% 58.7% 47.0%
22 2024 50/56 3.0 6.8 57.2% 65.8% 44.1% 52.9% 53.3% 56.6% 44.8% 2022 25/27 1.8 2.7 60.9% 61.1% 44.6% 53.2% 42.5% 54.5% 40.9%
23 2025 34/44 3.0 5.8 59.5% 67.7% 46.0% 62.0% 49.1% 58.9% 45.1% 2023 5/5 2.4 2.2 54.4% 63.4% 45.2% 51.9% 43.3% 54.6% 37.0%
24 2026 47/48 3.8 4.1 58.1% 70.9% 47.6% 57.8% 53.0% 61.1% 46.8% 2024 12/12 1.7 2.3 66.0% 65.9% 44.5% 51.4% 45.0% 58.5% 47.5%
25 — —/— — — — — — — — — — 2025 42/55 4.5 2.4 58.4% 66.4% 48.0% 50.5% 45.8% 58.6% 44.4%
26 — —/— — — — — — — — — — 2026 57/59 5.1 2.8 58.5% 68.7% 45.8% 59.5% 45.0% 59.3% 41.8%
Career — 264/282 3.2 5.4 58.9% 66.3% 44.7% 53.3% 49.0% 57.4% 44.4% — 177/194 3.5 2.6 59.8% 65.6% 46.8% 54.8% 45.0% 58.0% 43.3%

Advanced Statistics Comparison by Age

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 Marta Kostyuk Ann Li
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 2018 1511 99.7 — — — — — — — — — — — — —
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 2019 1527 — — — — — — — — — — — — — —
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 2020 1613 127.7 -1.21 -0.60 0.898 47.9% +17 — — 40.0% -0.60 1–0 2–0 — +0.12
21 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 2021 1755 141.4 +1.81 +2.79 1.138 52.9% +27 — -163 62.5% +0.88 4–4 (50%) 4–2 (67%) 102.3 +0.04
22 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 2022 1667 126.3 -1.81 -0.68 0.898 48.0% +42 — -81 42.6% -0.41 5–4 (56%) 2–6 (25%) 97.9 -1.14
23 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 2023 1669 123.4 -0.74 -1.07 0.814 46.1% +18 — — 25.0% -1.50 1–1 1–0 — -0.31
24 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 -2.47 2024 1706 123.8 +0.97 +1.36 1.145 52.8% -63 +90 — 53.6% +0.72 3–1 (75%) 1–1 — +0.29
25 — — — — — — — — — — — — — — — — 2025 1813 138.7 +1.64 +0.89 1.071 51.3% -17 -49 -243 55.1% +0.26 9–10 (47%) 10–7 (59%) 102.2 -1.40
26 — — — — — — — — — — — — — — — — 2026 1862 150.2 +2.25 -0.50 1.025 50.5% 0 -49 -260 51.4% +0.18 15–11 (58%) 11–8 (58%) 105.6 +1.18
Career — 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 -1.61 — 1897 143.7 +1.15 +0.45 1.031 50.7% +3 -36 -179 51.9% +0.18 38–31 (55%) 31–24 (56%) 108.0 -0.64

Career Rivalries

Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.