Pavel Riha defeated Jakub Hasek 6-1 6-4 in the Czech Republic Masters 4 round of 32 on hard. The upset overturned the form book — Jakub Hasek came in leading the head-to-head 2–0. Pavel Riha claimed a first win over Jakub Hasek in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-08-22 | Germany F12 | R16 | clay | Jakub Hasek | 6-4 6-2 |
| 2004-11-08 | Czech Rep F6 | R32 | hard | Jakub Hasek | 6-4 6-3 |