Byung Kook Kang defeated Seong Yoon Chung 6-1 6-2 in the Indonesia F1 round of 16 on hard. Byung Kook Kang extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-08-06 | Indonesia F2 | R32 | hard | Byung Kook Kang | 6-2 6-4 |
| 2002-07-29 | Korea Rep F3 | R32 | hard | Seong Yoon Chung | 6-3 7-6(4) |