Tsung Hua Yang defeated Jae Sung An 6-3 7-5 in the Korea F2 qualifying round on hard. The result followed the form book — Tsung Hua Yang came in leading the head-to-head 2–1. Tsung Hua Yang extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-07-11 | Chinese Taipei F2 | SF | hard | Jae Sung An | 6-2 6-1 |
| 2010-06-28 | Malaysia F2 | R32 | hard | Tsung Hua Yang | 7-5 3-0 |
| 2008-05-05 | Korea Rep F2 | R32 | hard | Tsung Hua Yang | 6-3 3-6 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.