Kristof Vliegen defeated Stefan Koubek 6-4 6-2 in the Barcelona round of 64 on clay. The upset overturned the form book — Stefan Koubek came in leading the head-to-head 1–0. Kristof Vliegen claimed a first win over Stefan Koubek in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-07-30 | Sopot | R16 | clay | Stefan Koubek | 6-2 3-6 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (183 vs 170). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About