Tasuku Iwami advanced past Seung Hoon Lee via walkover in the Chinese Taipei F2 semi-final. Tasuku Iwami narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-04-19 | Japan F2 | R16 | carpet | Seung Hoon Lee | 6-3 6-1 |
| 2000-07-17 | Indonesia F3 | R16 | hard | Tasuku Iwami | 6-7(4) 6-3 6-4 |
| 1998-05-25 | Korea F1 | R32 | hard | Seung Hoon Lee | 6-2 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.