Akiko Yonemura defeated Aki Yamasoto 6-2 6-0 in the Hamamatsu 25K round of 32 on grass. The result followed the form book — Akiko Yonemura came in leading the head-to-head 2–0. Akiko Yonemura extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-09-12 | Kyoto 10K | SF | carpet | Akiko Yonemura | 6-3 6-2 |
| 2007-09-10 | Tokyo 50K | R32 | hard | Akiko Yonemura | 5-7 7-6(5) 6-1 |