Jan Stancik defeated Marek Semjan 6-3 6-7 6-1 in the Slovakia F2 semi-final on clay. The upset overturned the form book — Marek Semjan came in leading the head-to-head 2–0. Jan Stancik claimed a first win over Marek Semjan in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-10-16 | Portugal F5 | R16 | hard | Marek Semjan | 1-6 6-4 6-3 |
| 2006-07-31 | Hungary F1 | QF | clay | Marek Semjan | 4-6 6-2 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.