Wojtek Kowalski defeated Thierry Grin 6-3 5-7 6-2 in the Switzerland Masters 1 round of 16 on carpet. The result followed the form book — Wojtek Kowalski came in leading the head-to-head 1–0. Wojtek Kowalski extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1992-10-26 | Switzerland Masters 4 | R32 | carpet | Wojtek Kowalski | 7-6 6-2 |