Maria Geznenge defeated Stefanie Haidner 5-7 6-3 6-3 in the Belgrade 25K round of 32 on clay. The upset overturned the form book — Stefanie Haidner came in leading the head-to-head 1–0, but Maria Geznenge had been the form player, winning 7 of their last 10 on clay. Maria Geznenge claimed a first win over Stefanie Haidner in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-08-09 | Martina Franca 25K | R16 | clay | Stefanie Haidner | 4-6 7-6(5) 6-4 |