Yukina Saigo defeated Ayaka Ozeki 6-1 6-0 in the W25 Karuizawa round of 32 on grass. Yukina Saigo extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-06-12 | W15 Tokyo 2 | R32 | hard | Yukina Saigo | 7-5 7-6(5) |
| 2023-10-03 | W25 Makinohara | Q16 | carpet | Ayaka Ozeki | 4-6 6-0 10-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.