Tomoko Sugano defeated Mari Inoue 4-6 6-3 6-2 in the Tokyo 2 10K round of 32 on hard. The result followed the form book — Tomoko Sugano came in leading the head-to-head 4–1. Tomoko Sugano extended the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-11-15 | Hyogo 10K | R16 | carpet | Mari Inoue | 6-2 7-6(1) |
| 2007-09-03 | Kyoto 10K | R32 | carpet | Tomoko Sugano | 6-4 6-0 |
| 2007-07-30 | Obihiro 25K | R32 | carpet | Tomoko Sugano | 6-1 6-7(3) 6-3 |
| 2005-09-05 | Kyoto 10K | R16 | carpet | Tomoko Sugano | 1-6 6-4 6-2 |
| 2003-09-22 | Hiroshima 10K | R32 | grass | Tomoko Sugano | 6-4 6-4 |