Akiko Yonemura defeated Hiroko Kuwata 2-6 6-1 6-1 in the Tokyo 10K semi-final on hard. The upset overturned the form book — Hiroko Kuwata came in leading the head-to-head 4–0. Akiko Yonemura claimed a first win over Hiroko Kuwata in five meetings, narrowing 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 |
| 2012-06-18 | Mie 10K | QF | grass | Hiroko Kuwata | 7-5 6-2 |
| 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.