Hee Seok Chung defeated Seong Yoon Chung 6-1 5-7 6-3 in the Indonesia F3 round of 16 on hard. Hee Seok Chung extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-05-09 | Korea Rep F2 | R16 | hard | Seong Yoon Chung | 7-6(6) 3-6 6-4 |
| 2004-08-09 | Indonesia F2 | R16 | hard | Hee Seok Chung | 3-6 6-2 6-4 |