Seiko Okamoto defeated Erika Takao 6-1 6-2 in the Ho Chi Minh City 25K final on hard. Seiko Okamoto extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-07-10 | Miyazaki 25K | SF | carpet | Erika Takao | 6-2 2-6 6-4 |
| 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.