Ladislav Chramosta defeated Marek Semjan 7-5 4-6 7-6 in the Czech Rep F2 round of 16 on clay. The upset overturned the form book — Marek Semjan came in leading the head-to-head 1–0. Ladislav Chramosta claimed a first win over Marek Semjan in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-05-21 | Czech Rep F3 | R32 | clay | Marek Semjan | 2-6 6-4 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.