

Naomi Osaka defeated Coco Gauff 4-6 6-3 6-4 in the Cincinnati round of 32 on hard. The upset overturned the form book — Coco Gauff came in ranked #4, leading the head-to-head 3–2, defending last year's round of 64. Naomi Osaka narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-08-25 | US Open | R16 | hard | Naomi Osaka | 6-3 6-2 |
| 2024-09-25 | Beijing | R16 | hard | Coco Gauff | 3-6 6-4 0-0 RET |
| 2022-08-01 | San Jose | R16 | hard | Coco Gauff | 6-4 6-4 |
| 2020-01-20 | Australian Open | R32 | hard | Coco Gauff | 6-3 6-4 |
| 2019-08-26 | US Open | R32 | hard | Naomi Osaka | 6-3 6-0 |
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
Averages over each player's completed matches in the selected window (139 vs 200). ATP, WTA & Challenger.
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.