Jung Woong Na defeated Gengo Kikuchi 6-1 7-5 in the Japan F1 round of 16 on hard. Jung Woong Na extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-09-07 | Korea F7 | R16 | clay | Jung Woong Na | 6-3 6-3 |
| 2012-10-08 | Japan F8 | QF | hard | Gengo Kikuchi | 4-6 7-5 6-0 |
Averages over each player's completed matches in the selected window (62 vs 57). 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