Jan Riha defeated Pavel Riha 6-2 7-5 in the Slovenia F2 round of 32 on clay. The upset overturned the form book — Pavel Riha came in leading the head-to-head 1–0, but Jan Riha had been the form player, winning 4 of their last 7 on clay. Jan Riha claimed a first win over Pavel Riha in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-08-25 | Austria F8 | R16 | clay | Pavel Riha | 6-1 6-4 |