Mark Nielsen defeated Hyung Tae Kwon 6-3 6-2 in the Japan F2 round of 16 on carpet. Mark Nielsen extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-06-09 | Japan F4 | R32 | clay | Mark Nielsen | 6-3 6-4 |
| 2005-04-18 | Japan F2 | R16 | clay | Hyung Tae Kwon | 2-6 6-1 7-6(9) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.