Akiko Yonemura defeated Ai Yamamoto 7-5 4-6 7-5 in the Karuizawa 25K round of 32 on carpet. The result followed the form book — Akiko Yonemura came in leading the head-to-head 1–0. Akiko Yonemura extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-05-25 | Gunma 25K | R16 | carpet | Akiko Yonemura | 6-2 7-6(3) |