Woong Sun Jun defeated Jae Won Yun 6-2 6-4 in the Korea F7 round of 32 on clay. 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 |
|---|---|---|---|---|---|
| 2011-06-06 | China F7 | R16 | hard | Woong Sun Jun | 7-6(2) 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.