Patrick Knobloch defeated Jakub Hasek 6-3 6-4 in the Tunisia F3 qualifying round on hard. The upset overturned the form book — Jakub Hasek came in leading the head-to-head 1–0. Patrick Knobloch claimed a first win over Jakub Hasek in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-06-26 | Germany F6 | R16 | clay | Jakub Hasek | 6-1 6-4 |