Grega Zemlja defeated Gyorgy Balazs 7-6 6-7 6-2 in the Umag q32 on clay. The upset overturned the form book — Gyorgy Balazs came in leading the head-to-head 1–0. Grega Zemlja claimed a first win over Gyorgy Balazs in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-10-04 | Hungary F6 | R16 | clay | Gyorgy Balazs | 2-6 6-2 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.