Maria Sakkari defeated Marta Kostyuk 6-4 6-3 in the US Open round of 128 on hard. The upset overturned the form book — Marta Kostyuk came in ranked #13, leading the head-to-head 2–1, defending last year's round of 32. Maria Sakkari narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-07-29 | Paris Olympics | R16 | clay | Marta Kostyuk | 4-6 7-6(5) 6-4 |
| 2023-07-03 | Wimbledon | R128 | grass | Marta Kostyuk | 0-6 7-5 6-2 |
| 2022-10-17 | Guadalajara 2 | R32 | hard | Maria Sakkari | 6-4 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Sakkari M.: 7 days rest · 1 match, 15 games (7d) · Kostyuk M.: 2 days rest · 4 matches, 82 games (7d). Higher means fresher. About