

Marta Kostyuk defeated Elina Svitolina 6-3 2-6 6-2 in the Roland Garros quarter-final on clay. The upset overturned the form book — Elina Svitolina came in ranked #10, defending last year's quarter-final. Marta Kostyuk extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-08-05 | Toronto | R32 | hard | Marta Kostyuk | 6-2 2-6 6-2 |
| 2018-01-15 | Australian Open | R32 | hard | Elina Svitolina | 6-2 6-2 |
Averages over each player's completed matches in the selected window (23 vs 20). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Svitolina E.: 17 days rest · Kostyuk M.: 8 days rest · 4 matches (14d). 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