Michihisa Onoda defeated Oh Hee Kwon 6-4 6-3 in the Japan F2 round of 16 on carpet. The upset overturned the form book — Oh Hee Kwon came in leading the head-to-head 2–1. Michihisa Onoda narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-05-17 | Japan F4 | QF | hard | Oh Hee Kwon | 6-3 6-3 |
| 1998-11-25 | Japan F6 | R32 | hard | Michihisa Onoda | 6-3 6-2 |
| 1998-11-18 | Japan F5 | R16 | hard | Oh Hee Kwon | 6-1 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.