Frantisek Cermak defeated Rene Hanak 6-2 7-5 in the Hungary Masters 4 round of 32 on clay. The upset overturned the form book — Rene Hanak came in leading the head-to-head 1–0. Frantisek Cermak claimed a first win over Rene Hanak in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-08-09 | Croatia 4 Masters 3 | R16 | clay | Rene Hanak | 4-6 6-3 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.