

Marta Kostyuk defeated Maria Sakkari 4-6 7-6 6-4 in the Paris Olympics round of 16 on clay. The result followed the form book — Marta Kostyuk came in ranked #11. Marta Kostyuk narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 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 |
| 2021-08-30 | US Open | R128 | hard | Maria Sakkari | 6-4 6-3 |
Averages over each player's completed matches in the selected window (130 vs 124). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Kostyuk M.: 1 day rest · 2 matches, 55 games (7d) · Sakkari M.: 2 days rest · 2 matches, 51 games (7d). Higher means fresher. About
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 clay field, opponent-adjusted over 52 weeks). About