Maki Arai defeated Kumiko Iijima 7-5 6-3 in the Inchon 25K round of 32 on hard. The result followed the form book — Maki Arai came in leading the head-to-head 2–1. Maki Arai extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-09-08 | Noto 25K | R16 | carpet | Kumiko Iijima | 6-3 6-3 |
| 2003-06-09 | Seoul 10K | R32 | hard | Maki Arai | 6-1 6-3 |
| 1999-09-06 | Ibaraki 1 10K | R32 | hard | Maki Arai | 6-2 6-2 |