Oh Hee Kwon defeated Yoshinobu Tanaka 4-6 6-4 6-1 in the Japan 1 Masters 3 round of 32 on hard. Oh Hee Kwon extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-09-18 | Japan F7 | R32 | hard | Yoshinobu Tanaka | 3-6 6-4 6-2 |
| 1998-09-30 | Japan F3 | R16 | carpet | Oh Hee Kwon | 7-5 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.