
Karolina Muchova defeated Naomi Osaka 6-3 7-6 in the US Open round of 64 on hard. The result followed the form book — Karolina Muchova came in ranked #6, defending last year's semi-final. Karolina Muchova narrowed the head-to-head to 5–5.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-07-07 | Wimbledon | QF | grass | Karolina Muchova | 6-7 4-6 |
| 2026-06-27 | Bad Homburg | F | grass | Karolina Muchova | 6-1 1-0 |
| 2025-09-03 | US Open | QF | hard | Naomi Osaka | 6-4 7-6(3) |
| 2025-08-25 | US Open | QF | hard | Naomi Osaka | 6-4 7-6 |
| 2025-01-15 | Australian Open | R64 | hard | Naomi Osaka | 1-6 6-1 6-3 |
| 2025-01-13 | Australian Open | R64 | hard | Naomi Osaka | 1-6 6-1 6-3 |
| 2024-08-26 | US Open | R64 | hard | Karolina Muchova | 6-3 7-6 |
| 2021-04-29 | Madrid | R32 | clay | Karolina Muchova | 6-4 3-6 6-1 |
| 2020-08-24 | Cincinnati | R32 | hard | Naomi Osaka | 6-7 6-4 6-2 |
Averages over each player's completed matches in the selected window (92 vs 97). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Muchova K.: 15 days rest · Osaka N.: 19 days rest. 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