Marko Por defeated Josip Dumanic 6-2 6-1 in the Croatia 4 Masters 3 round of 32 on clay. The result followed the form book — Marko Por came in leading the head-to-head 1–0. Marko Por extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-07-12 | Slovenia Masters 2 | R32 | clay | Marko Por | 6-3 6-3 |