Michael Zimmerman defeated Sandro Della Piana 7-6 6-2 in the Switzerland Masters 3 round of 32 on carpet. The result followed the form book — Michael Zimmerman came in leading the head-to-head 1–0. Michael Zimmerman extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1993-09-12 | Great Britain 3 Masters 1 | R32 | hard | Michael Zimmerman | 6-3 6-4 |