Soong Jae Cho defeated Sun Yong Kim Jr 7-6 6-2 in the Korean Rep F5 round of 16 on hard. Soong Jae Cho extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-06-30 | Korea F8 | R32 | hard | Soong Jae Cho | 6-7(1) 6-0 2-0 |
| 2009-08-03 | China F5 | QF | hard | Sun Yong Kim Jr | 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.