Ayumi Morita defeated Kumiko Iijima 6-7 6-1 7-6 in the Obihiro 25K qualifying round on carpet. Ayumi Morita extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-10-31 | Taipei 100K | R32 | hard | Ayumi Morita | 6-2 6-4 |
| 2006-10-23 | Hamanako 25K | R32 | carpet | Kumiko Iijima | 6-4 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.