Chihiro Oasa defeated Ai Kamiyoshihara 6-2 6-4 in the Kofu 10K qualifying round of 64 on hard. The result followed the form book — Chihiro Oasa came in leading the head-to-head 1–0. Chihiro Oasa extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-06-11 | Tokyo 10K | Q32 | hard | Chihiro Oasa | 6-1 1-6 7-5 |