Luis Horna defeated Gaston Gaudio 4-6 6-4 6-3 in the Acapulco semi-final on hard. The upset overturned the form book — Gaston Gaudio came in leading the head-to-head 3–1, defending last year's round of 32. Luis Horna narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-02-26 | Acapulco | R32 | hard | Gaston Gaudio | 1-1 |
| 2004-07-19 | Kitzbuhel | QF | clay | Gaston Gaudio | 7-6 7-6 |
| 2003-04-14 | Monte Carlo Masters | R32 | clay | Gaston Gaudio | 6-4 6-1 |
| 1998-05-02 | Chile 2 Masters 3 | R16 | clay | Luis Horna | 6-0 6-2 |
Averages over each player's completed matches in the selected window (88 vs 73). 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