Kaori Aoyama defeated Kumiko Iijima 6-2 6-3 in the Gunma 10K qualifying round on grass. Kaori Aoyama extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-05-24 | Kusatsu 25K | R32 | carpet | Kumiko Iijima | 6-4 6-3 |
| 2004-04-19 | Hamanako 10K | R16 | carpet | Kaori Aoyama | 6-2 6-1 |