Ayumi Oka defeated Ayaka Maekawa 6-4 6-7 6-1 in the Kyoto 10K round of 16 on carpet. Ayumi Oka extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-08-17 | Pingguo 25K | R32 | hard | Ayaka Maekawa | 6-3 6-3 |
| 2008-06-16 | Sutama 10K | QF | clay | Ayumi Oka | 1-6 7-5 6-4 |