So Jung Kim defeated Kyung Yee Chae 3-6 7-5 6-1 in the Incheon 25K qualifying round on hard. The result followed the form book — So Jung Kim came in leading the head-to-head 2–0. So Jung Kim extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-03-23 | Wellington 10K | F | hard | So Jung Kim | 4-6 6-3 7-5 |
| 2004-06-28 | Inchon 10K | R32 | hard | So Jung Kim | 6-0 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.