Hiroko Kuwata defeated Akiko Yonemura 7-5 6-2 in the Mie 10K qualifying round on grass. The result followed the form book — Hiroko Kuwata came in leading the head-to-head 3–1. Hiroko Kuwata extended the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-09-09 | Kyoto 10K | F | carpet | Hiroko Kuwata | 6-1 6-2 |
| 2013-09-02 | Noto 25K | Q16 | grass | Hiroko Kuwata | 7-5 6-1 |
| 2013-06-17 | Tokyo 10K | SF | hard | Akiko Yonemura | 2-6 6-1 6-1 |
| 2012-03-19 | Kofu 10K | SF | hard | Hiroko Kuwata | 5-7 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.