Maya Kato defeated Tomoko Sugano 6-3 7-5 in the Saitama 10K round of 16 on hard. The result followed the form book — Maya Kato came in leading the head-to-head 2–1. Maya Kato extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-06-07 | Tokyo 10K | R32 | hard | Tomoko Sugano | 6-1 6-1 |
| 2007-07-02 | Nagoya 25K | R32 | hard | Maya Kato | 7-5 6-0 |
| 2005-10-24 | Tokyo 2 10K | R16 | hard | Maya Kato | 1-6 |