Karel Triska defeated Alexander Flock 6-4 7-5 in the Austria F4 round of 16 on clay. The upset overturned the form book — Alexander Flock came in leading the head-to-head 1–0. Karel Triska claimed a first win over Alexander Flock in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-05-03 | Czech Republic F1 | R16 | clay | Alexander Flock | 3-2 |