Woong Sun Jun defeated Jae Sung An 6-2 6-4 in the China F8 qualifying round on hard. The result followed the form book — Woong Sun Jun came in leading the head-to-head 1–0. Woong Sun Jun extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-04-05 | Korea F1 | R16 | hard | Woong Sun Jun | 4-6 6-2 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.