
Marta Kostyuk defeated Coco Gauff 3-6 6-4 7-6 in the Stuttgart quarter-final on clay. The upset overturned the form book — Coco Gauff came in ranked #7, leading the head-to-head 3–1, defending last year's round of 16. Marta Kostyuk narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-02-09 | Doha | R32 | hard | Marta Kostyuk | 6-2 7-5 |
| 2024-10-07 | Wuhan | R16 | hard | Coco Gauff | 6-4 6-1 |
| 2024-01-15 | Australian Open | QF | hard | Coco Gauff | 7-6(6) 6-7(3) 6-2 |
| 2022-01-10 | Adelaide 2 | R16 | hard | Coco Gauff | 6-3 5-7 6-3 |
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
Averages over each player's completed matches in the selected window (117 vs 151). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
Kostyuk M.: 3 days rest · 3 matches, 57 games (7d) · Gauff C.: 3 days rest · 3 matches, 85 games (7d). Higher means fresher. About