
Naomi Osaka defeated Saisai Zheng 6-2 6-4 in the Australian Open round of 64 on hard. The result followed the form book — Naomi Osaka came in ranked #13, leading the head-to-head 1–0, defending the title. Naomi Osaka extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-07-24 | Tokyo Olympics | R64 | hard | Naomi Osaka | 6-1 6-4 |
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 (158 vs 60). ATP, WTA & Challenger.