Yoo Mi Jung defeated Kyung Mi Chang 7-5 6-0 in the Wellington 10K round of 32 on hard. The upset overturned the form book — Kyung Mi Chang came in leading the head-to-head 2–0. Yoo Mi Jung claimed a first win over Kyung Mi Chang in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-11-29 | Bangkok 10K | R16 | hard | Kyung Mi Chang | 7-6(3) 7-5 |
| 2003-07-21 | Changwon 25K | R16 | hard | Kyung Mi Chang | 6-3 6-4 |