Tomas Catar defeated Boris Borgula 1-6 6-1 6-1 in the Slovak Republic Masters 1 qualifying round on clay. The upset overturned the form book — Boris Borgula came in leading the head-to-head 2–1. Tomas Catar narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-05-02 | Croatia 2 Masters 2 | SF | clay | Boris Borgula | 6-1 6-2 |
| 1997-07-12 | Slovenia Masters 3 | QF | clay | Tomas Catar | 6-2 6-4 |
| 1997-07-12 | Slovenia Masters 4 | SF | clay | Boris Borgula | 7-5 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.