Patrick Erhardt defeated Riki Ishigami 6-4 6-4 in the Japan 2 Masters 1 round of 32 on hard. The result followed the form book — Patrick Erhardt came in leading the head-to-head 1–0. Patrick Erhardt extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-11-17 | Japan 2 Masters 2 | R16 | hard | Patrick Erhardt | 6-3 7-6 |