Oh Hee Kwon defeated Arata Onozawa 7-5 6-2 in the Japan F9 qualifying round on clay. The result followed the form book — Oh Hee Kwon came in leading the head-to-head 3–0. Oh Hee Kwon extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-07-20 | Korean Rep F6 | R32 | hard | Oh Hee Kwon | 6-1 6-4 |
| 2007-10-15 | Japan F10 | R16 | hard | Oh Hee Kwon | 6-1 6-3 |
| 2006-06-12 | Japan F6 | R32 | clay | Oh Hee Kwon | 6-4 6-1 |
Averages over each player's completed matches in the selected window (17 vs 46). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About