Jeong A Cho defeated Sun Jung Kim 6-4 1-6 6-0 in the Gimhae 10K round of 32 on hard. The upset overturned the form book — Sun Jung Kim came in leading the head-to-head 2–0. Jeong A Cho claimed a first win over Sun Jung Kim in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-05-07 | Gimcheon 25K | R16 | hard | Sun Jung Kim | 6-0 7-5 |
| 2006-05-22 | Seogwipo 10K | R32 | hard | Sun Jung Kim | 7-6(8) 6-1 |