Sung Hee Han defeated Sun Jung Kim 4-6 6-2 6-4 in the Yeongwol 10K round of 32 on hard. The upset overturned the form book — Sun Jung Kim came in leading the head-to-head 2–1. Sung Hee Han narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-05-25 | Changwon $25K | Q16 | hard | Sung Hee Han | 6-4 6-4 |
| 2014-06-23 | Gimcheon 10K | R16 | hard | Sun Jung Kim | 6-1 4-0 |
| 2013-06-10 | Gimcheon 10K | R16 | hard | Sun Jung Kim | 6-0 6-7(4) 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.