
Varvara Gracheva defeated Marta Kostyuk 6-7 6-3 6-4 in the Chicago 1 quarter-final on hard. The upset overturned the form book — Marta Kostyuk came in ranked #11, leading the head-to-head 4–1. Varvara Gracheva narrowed the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-02-27 | Austin | F | hard | Marta Kostyuk | 6-3 7-5 |
| 2021-05-31 | Roland Garros | R32 | clay | Marta Kostyuk | 6-1 6-2 |
| 2020-02-18 | W60 Cairo | R32 | hard | Marta Kostyuk | 6-2 6-2 |
| 2019-09-22 | W60+H Saint-Malo | F | clay | Varvara Gracheva | 6-3 6-2 |
| 2019-05-13 | W60+H La Bisbal D'Emporda | Q16 | clay | Marta Kostyuk | 6-3 1-6 10-1 |
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
Kostyuk M.: 1 day rest · 3 matches, 79 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 hard field, opponent-adjusted over 52 weeks). About