Oh Hee Kwon defeated Jae Sung An 6-2 7-5 in the Japan F7 final on clay. The result followed the form book — Oh Hee Kwon came in leading the head-to-head 2–0. Oh Hee Kwon extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-08-31 | Thailand F3 | R32 | hard | Oh Hee Kwon | 6-4 6-2 |
| 2007-04-30 | Korea Rep F2 | R32 | hard | Oh Hee Kwon | 6-1 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.