Juan Ignacio Chela defeated Stefan Koubek 7-6 6-3 in the Mexico City semi-final on clay. The upset overturned the form book — Stefan Koubek came in leading the head-to-head 3–0. Juan Ignacio Chela claimed a first win over Stefan Koubek in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-10-22 | Basel | R32 | hard | Stefan Koubek | 6-3 6-4 |
| 2000-08-28 | US Open | R128 | hard | Stefan Koubek | 4-6 6-3 7-6(4) 7-6(5) |
| 2000-08-21 | Long Island | R64 | hard | Stefan Koubek | 7-6(3) 6-3 |
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 (200 vs 200). ATP, WTA & Challenger.