Jeroen Heinhuis defeated Tomas Krupa 4-6 6-2 7-5 in the Poland Masters 3 round of 16 on clay. The upset overturned the form book — Tomas Krupa came in leading the head-to-head 1–0. Jeroen Heinhuis claimed a first win over Tomas Krupa in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1993-06-27 | Poland Masters 2 | R32 | clay | Tomas Krupa | 6-3 6-1 |