Akira Matsushita defeated Riki Ishigami 6-3 6-3 in the Japan F5 round of 16 on hard. The result followed the form book — Akira Matsushita came in leading the head-to-head 2–0. Akira Matsushita extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-10-07 | Japan F4 | R16 | carpet | Akira Matsushita | 6-4 6-4 |
| 1998-06-29 | Japan 1 Masters 3 | QF | hard | Akira Matsushita | 6-2 6-1 |