Gyorgy Balazs defeated Adam Kellner 1-6 6-3 6-4 in the Hungary F3 round of 32 on clay. The upset overturned the form book — Adam Kellner came in leading the head-to-head 1–0. Gyorgy Balazs claimed a first win over Adam Kellner in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-09-27 | Hungary F5 | R16 | clay | Adam Kellner | 6-4 6-2 |