Jung Woong Na defeated Jae Hwan Kim 6-1 6-1 in the M25 Changwon 1 round of 32 on hard. The result followed the form book — Jung Woong Na came in leading the head-to-head 2–0. Jung Woong Na extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-08-24 | Korea F5 | R32 | hard | Jung Woong Na | 7-5 6-2 |
| 2012-05-14 | Korea F1 | R16 | hard | Jung Woong Na | 6-2 6-1 |
Averages over each player's completed matches in the selected window (5 vs 14). 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