Masashi Tokumaru defeated Patrick Erhardt 2-6 6-1 7-6 in the Japan F4 round of 32 on carpet. Masashi Tokumaru extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-03-17 | Japan F1 | R32 | clay | Masashi Tokumaru | 6-1 4-1 |
| 1996-11-04 | Japan 2 Masters 4 | R16 | hard | Patrick Erhardt | 6-2 6-3 |