Woong Sun Jun defeated Dong Hyun Kim 6-4 6-3 in the Korea Rep F1 round of 16 on hard. The result followed the form book — Woong Sun Jun came in leading the head-to-head 2–0. Woong Sun Jun extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-06-19 | Japan F7 | QF | carpet | Woong Sun Jun | 6-2 7-6(6) |
| 2004-08-09 | Indonesia F2 | R16 | hard | Woong Sun Jun | 4-6 6-2 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.