Christopher Kas defeated Philipp Petzschner 6-2 6-2 in the Germany 1 Satellite 2 semi-final on carpet. The upset overturned the form book — Philipp Petzschner came in leading the head-to-head 1–0. Christopher Kas claimed a first win over Philipp Petzschner in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-04-30 | Munich | Q16 | clay | Philipp Petzschner | 6-4 7-6(5) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.