Erika Takao defeated Seiko Okamoto 6-2 2-6 6-4 in the Miyazaki 25K semi-final on carpet. The upset overturned the form book — Seiko Okamoto came in leading the head-to-head 2–0. Erika Takao claimed a first win over Seiko Okamoto in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-04-09 | Ho Chi Minh City 25K | F | hard | Seiko Okamoto | 6-1 6-2 |
| 2005-05-23 | Nagano 25K | SF | carpet | Seiko Okamoto | 6-2 7-6(3) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.