Natsumi Hamamura defeated Maya Kato 6-1 6-1 in the Tokyo 2 10K round of 32 on hard. Natsumi Hamamura extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-05-26 | Gunma 25K | R32 | carpet | Maya Kato | 6-3 1-6 7-6(5) |
| 2007-07-30 | Obihiro 25K | R16 | carpet | Natsumi Hamamura | 6-3 6-3 |