Tasuku Iwami defeated Dong Hyun Kim 6-1 7-6 in the Korea Rep F3 final on hard. Tasuku Iwami extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-06-27 | Japan F8 | R16 | hard | Dong Hyun Kim | 6-1 4-1 |
| 2001-09-17 | Japan F7 | QF | hard | Tasuku Iwami | 6-4 6-7(2) 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.