Jae Sung An defeated David Agung Susanto 6-2 6-0 in the Thailand F4 round of 32 on hard. The result followed the form book — Jae Sung An came in leading the head-to-head 2–0. Jae Sung An extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-09-12 | Australia F6 | R32 | hard | Jae Sung An | 6-0 6-3 |
| 2010-06-07 | Indonesia F2 | R32 | hard | Jae Sung An | 1-6 6-1 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.