Jaroslav Pospisil defeated Michal Mertinak 6-3 6-3 in the Doha q16 on hard. The upset overturned the form book — Michal Mertinak came in leading the head-to-head 3–0. Jaroslav Pospisil claimed a first win over Michal Mertinak in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-04-24 | Munich | Q16 | clay | Michal Mertinak | 5-7 6-2 7-6(5) |
| 2002-11-11 | Czech Rep F8 | R32 | carpet | Michal Mertinak | 6-4 6-3 |
| 2001-03-19 | Egypt 1 3 | R32 | clay | Michal Mertinak | 6-1 7-6(3) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.