Hyung Tae Kwon defeated David Martin 7-5 6-4 in the Japan F3 round of 32 on carpet. The upset overturned the form book — David Martin came in leading the head-to-head 2–0. Hyung Tae Kwon claimed a first win over David Martin in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-04-17 | Japan F2 | QF | carpet | David Martin | 6-0 6-4 |
| 2005-09-05 | Japan F10 | R16 | hard | David Martin | 6-2 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.