Seiko Okamoto defeated Eun Jeong Lee 6-3 3-6 6-4 in the Inchon 10K qualifying round on hard. The upset overturned the form book — Eun Jeong Lee came in leading the head-to-head 2–0. Seiko Okamoto claimed a first win over Eun Jeong Lee in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2002-07-15 | Seoul 10K | R32 | hard | Eun Jeong Lee | 6-1 6-2 |
| 1999-03-29 | Inchon 10K | R32 | clay | Eun Jeong Lee | 6-4 6-1 |