Seiko Okamoto defeated Tomoko Sugano 6-4 7-5 in the Nagano 25K round of 32 on carpet. The result followed the form book — Seiko Okamoto came in leading the head-to-head 1–0. Seiko Okamoto extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-10-08 | Beijing 25K | R16 | hard | Seiko Okamoto | 6-3 6-0 |