Marek Semjan defeated Ladislav Chramosta 2-6 6-4 7-5 in the Czech Rep F3 round of 32 on clay. The upset overturned the form book — Ladislav Chramosta came in leading the head-to-head 1–0. Marek Semjan claimed a first win over Ladislav Chramosta in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-22 | Czech Rep F2 | R16 | clay | Ladislav Chramosta | 7-5 4-6 7-6(3) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.