Woong Sun Jun defeated Seong Gook Oh 6-3 6-4 in the Korea F7 q16 on clay. The result followed the form book — Woong Sun Jun came in leading the head-to-head 2–0. Woong Sun Jun extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-05-06 | Korea F2 | Q64 | hard | Woong Sun Jun | 6-3 6-3 |
| 2011-10-24 | Laos F1 | R16 | hard | Woong Sun Jun | 6-3 6-2 |
Averages over each player's completed matches in the selected window (6 vs 29). 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