Tomoyo Takagishi defeated Akiko Yonemura 4-6 6-4 6-4 in the Haibara 25K round of 32 on carpet. The upset overturned the form book — Akiko Yonemura came in leading the head-to-head 2–0. Tomoyo Takagishi claimed a first win over Akiko Yonemura in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-05-28 | Gunma 25K | R32 | carpet | Akiko Yonemura | 6-2 6-1 |
| 2006-05-22 | Nagano 25K | R32 | carpet | Akiko Yonemura | 6-4 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.