Kyung Mi Chang defeated Na Ri Kim 7-6 3-6 7-6 in the Go Yang 10K qualifying round on hard. The upset overturned the form book — Na Ri Kim came in leading the head-to-head 2–1. Kyung Mi Chang narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-06-22 | Gimcheon 10K | F | hard | Na Ri Kim | 6-4 6-7(5) 6-2 |
| 2009-06-01 | Gimhae 25K | R16 | hard | Na Ri Kim | 6-1 6-3 |
| 2008-08-18 | Gimhae 10K | SF | hard | Kyung Mi Chang | 6-0 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.