Mayumi Yamamoto defeated Erika Takao 6-3 6-3 in the Gunma 25K round of 32 on carpet. Mayumi Yamamoto extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-10-17 | Makinohara 25K | R32 | carpet | Erika Takao | 7-5 7-6(2) |
| 2004-06-21 | Inchon 25K | R32 | hard | Mayumi Yamamoto | 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.