Ji Sung Nam defeated Oh Hee Kwon 6-3 7-6 in the Korea F2 round of 32 on hard. The result followed the form book — Ji Sung Nam came in leading the head-to-head 2–0. Ji Sung Nam extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-08-24 | Korea F5 | R16 | hard | Ji Sung Nam | 6-2 6-1 |
| 2014-05-26 | Korea F3 | R32 | hard | Ji Sung Nam | 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.