Philipp Mullner defeated Herbert Wiltschnig 6-4 6-3 in the Austria F1 round of 16 on clay. The upset overturned the form book — Herbert Wiltschnig came in leading the head-to-head 1–0. Philipp Mullner claimed a first win over Herbert Wiltschnig in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-09-12 | Iran F3 | F | clay | Herbert Wiltschnig | 3-6 6-4 6-4 |