Jung Woong Na defeated Issei Okamura 6-3 1-6 6-1 in the Gwangju CH qualifying round 1 on hard. The result followed the form book — Jung Woong Na came in leading the head-to-head 1–0. Jung Woong Na extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-03-18 | Japan F2 | R32 | hard | Jung Woong Na | 6-4 6-2 |
Averages over each player's completed matches in the selected window (42 vs 169). 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