
Naomi Osaka defeated Risa Ozaki 6-4 6-2 in the Indian Wells round of 128 on hard. The upset overturned the form book — Risa Ozaki came in defending last year's round of 128, but Naomi Osaka had been the form player, winning 5 of their last 7 on hard. Naomi Osaka extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-06-26 | Eastbourne | R64 | grass | Naomi Osaka | 6-0 6-1 |
| 2014-04-28 | Gifu 75K | R32 | hard | Risa Ozaki | 1-6 6-3 7-5 |
Averages over each player's completed matches in the selected window (199 vs 125). ATP, WTA & Challenger.
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