

Karolina Muchova defeated Coco Gauff 6-3 5-7 6-3 in the Stuttgart quarter-final on clay. The upset overturned the form book — Coco Gauff came in ranked #4, leading the head-to-head 7–1, defending last year's quarter-final. Karolina Muchova narrowed the head-to-head to 7–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-07-09 | Wimbledon | SF | grass | Karolina Muchova | 6-2 1-6 7-6 |
| 2026-03-17 | Miami | SF | hard | Coco Gauff | 6-1 6-1 |
| 2026-01-19 | Australian Open | R16 | hard | Coco Gauff | 6-1 3-6 6-3 |
| 2025-01-04 | United Cup | SF | hard | Coco Gauff | 6-1 6-4 |
| 2024-12-27 | United Cup | SF | hard | Coco Gauff | 6-1 6-4 |
| 2024-09-25 | Beijing | F | hard | Coco Gauff | 6-1 6-3 |
| 2023-08-28 | US Open | SF | hard | Coco Gauff | 6-4 7-5 |
| 2023-08-14 | Cincinnati | F | hard | Coco Gauff | 6-3 6-4 |
Averages over each player's completed matches in the selected window (41 vs 41). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Gauff C.: 1 day rest · 4 matches, 90 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