Toshiaki Sakai defeated Michihisa Onoda 6-4 7-6 in the Japan F2 round of 32 on carpet. Toshiaki Sakai extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-09-08 | Japan F7 | R16 | hard | Michihisa Onoda | 4-6 6-3 7-5 |
| 1996-11-04 | Japan 2 Masters 1 | R16 | hard | Toshiaki Sakai | 6-4 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.