Stefan Koubek defeated Jiri Vanek 4-6 6-3 6-2 in the Vienna round of 32 on hard. The upset overturned the form book — Jiri Vanek came in leading the head-to-head 2–0. Stefan Koubek claimed a first win over Jiri Vanek in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-08-09 | Sopot | R16 | clay | Jiri Vanek | 6-4 6-4 |
| 2001-08-20 | Long Island | Q16 | hard | Jiri Vanek | 7-6(4) 6-4 |
Averages over each player's completed matches in the selected window (200 vs 159). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About