Seiko Okamoto defeated Shizu Katsumi 7-6 6-4 in the Ibaraki 10K round of 32 on hard. 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 |
|---|---|---|---|---|---|
| 1999-09-06 | Ibaraki 1 10K | R32 | hard | Seiko Okamoto | 6-0 6-1 |