Kaori Aoyama defeated Kumiko Iijima 6-2 6-1 in the Hamanako 10K round of 16 on carpet. 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 |
| 2003-05-19 | Gunma 10K | QF | grass | Kaori Aoyama | 6-2 6-3 |