Kumiko Iijima defeated Ayaka Maekawa 6-2 6-2 in the Makinohara 25K round of 16 on carpet. The result followed the form book — Kumiko Iijima came in leading the head-to-head 3–0. Kumiko Iijima extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-09-27 | Hamanako 25K | QF | carpet | Kumiko Iijima | 6-1 7-5 |
| 2009-10-11 | Osaka | Q32 | hard | Kumiko Iijima | 6-4 6-1 |
| 2007-05-21 | Nagano 25K | R32 | carpet | Kumiko Iijima | 6-4 6-1 |