Jan Marek defeated Martin Vacek 5-7 6-1 6-4 in the Czech Rep F5 round of 32 on hard. The upset overturned the form book — Martin Vacek came in leading the head-to-head 1–0. Jan Marek claimed a first win over Martin Vacek in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-05-07 | Czech Rep F1 | QF | clay | Martin Vacek | 6-4 6-2 |