Jae Sung An defeated Byung Kook Kang 7-5 6-2 in the China F4 round of 16 on hard. The result followed the form book — Jae Sung An came in leading the head-to-head 1–0. Jae Sung An extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-05-16 | Korea F1 | R32 | hard | Jae Sung An | 7-5 4-6 5-2 |