Risa Ushijima defeated Michika Ozeki 6-4 7-6 in the W15 Jakarta 1 round of 16 on hard. The upset overturned the form book — Michika Ozeki came in leading the head-to-head 1–0, but Risa Ushijima had been the form player, winning 6 of their last 9 on hard. Risa Ushijima claimed a first win over Michika Ozeki in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2022-12-19 | W60 Kyoto | Q16 | hard | Michika Ozeki | 6-2 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.