Tomas Krupa defeated Jeroen Heinhuis 6-3 6-1 in the Poland Masters 2 round of 32 on clay. The upset overturned the form book — Jeroen Heinhuis came in leading the head-to-head 1–0. Tomas Krupa claimed a first win over Jeroen Heinhuis in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1993-06-27 | Poland Masters 3 | R16 | clay | Jeroen Heinhuis | 4-6 6-2 7-5 |