Seiko Okamoto defeated Tomoko Dokei 6-4 7-6 in the Kofu 10K round of 32 on clay. 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 |
|---|---|---|---|---|---|
| 2003-10-13 | Haibara 25K | R16 | carpet | Seiko Okamoto | 6-4 6-1 |