Oh Hee Kwon advanced when Kotaro Miyachi retired 2-6 7-5 1-0 in the Japan F5 qualifying round. Oh Hee Kwon extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-03-18 | Japan F2 | R32 | carpet | Oh Hee Kwon | 6-3 6-2 |
| 1999-05-12 | Japan F3 | QF | hard | Oh Hee Kwon | 7-6 7-6 |
| 1998-06-29 | Japan 1 Masters 4 | R16 | hard | Kotaro Miyachi | 6-2 6-1 |
Averages over each player's completed matches in the selected window (17 vs 2). 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. Small sample — read as indicative. About