Borut Martincevic defeated Daniel Fiala 6-4 1-6 7-5 in the Yugoslavia 1 Masters 4 round of 32 on clay. The upset overturned the form book — Daniel Fiala came in leading the head-to-head 1–0. Borut Martincevic claimed a first win over Daniel Fiala in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-05-03 | Yugoslavia 1 Masters 1 | R16 | clay | Daniel Fiala | 6-4 6-2 |