Boris Borgula defeated Miha Gregorc 6-4 7-5 in the Croatia 2 Masters 2 round of 32 on clay. The upset overturned the form book — Miha Gregorc came in leading the head-to-head 1–0. Boris Borgula claimed a first win over Miha Gregorc in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-04-03 | Croatia 2 Masters 2 | R32 | clay | Miha Gregorc | 0-6 7-5 6-1 |