Ji Sung Nam defeated Seong Chan Hong 6-2 6-2 in the Korea F5 qualifying round on hard. Ji Sung Nam extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-08-10 | Korea F3 | R16 | hard | Seong Chan Hong | 4-6 6-2 6-4 |
| 2014-04-28 | Korea F2 | R32 | hard | Ji Sung Nam | 6-0 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.
Chan Hong S.: 3 days rest · 1 match, 17 games (7d). Higher means fresher. About