Seong Yoon Chung defeated Suwandi Suwandi 7-6 6-7 6-3 in the Korea F1 round of 32 on clay. The result followed the form book — Seong Yoon Chung came in leading the head-to-head 1–0. Seong Yoon Chung extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-07-31 | Indonesia F1 | R32 | hard | Seong Yoon Chung | 6-2 6-4 |