

Mayar Sherif defeated Marta Kostyuk 6-3 7-5 in the Roland Garros round of 128 on clay. The upset overturned the form book — Marta Kostyuk came in ranked #11, defending last year's round of 16. Mayar Sherif extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-04-22 | Madrid | R64 | clay | Mayar Sherif | 6-2 7-5 |
| 2022-08-29 | US Open | R128 | hard | Marta Kostyuk | 7-6 6-4 |
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
Sherif M.: 1 day rest · 1 match, 19 games (7d) · Kostyuk M.: 3 days rest · 3 matches, 64 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