Woong Sun Jun defeated Hyun Woo Nam 6-3 6-4 in the Korea F8 round of 32 on hard. Woong Sun Jun extended the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-06-10 | Korea F6 | R16 | hard | Hyun Woo Nam | 7-5 6-3 |
| 2013-05-20 | Korea F3 | R32 | hard | Hyun Woo Nam | 6-1 7-5 |
| 2012-06-11 | Japan F5 | R32 | clay | Woong Sun Jun | 6-3 6-3 |
| 2006-04-17 | Japan F2 | R16 | carpet | Woong Sun Jun | 6-3 6-1 |
Averages over each player's completed matches in the selected window (6 vs 13). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About