Gaston Gaudio defeated Jose Acasuso 6-2 3-6 6-1 in the Vina del Mar quarter-final on clay. The result followed the form book — Gaston Gaudio came in leading the head-to-head 4–3, defending last year's quarter-final. Gaston Gaudio extended the head-to-head to 5–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-04-17 | Monte Carlo Masters | R32 | clay | Gaston Gaudio | 6-3 3-6 6-4 |
| 2005-10-17 | Madrid Masters | R32 | clay | Jose Acasuso | 7-6(4) 6-2 |
| 2004-03-01 | Acapulco | R32 | hard | Gaston Gaudio | 6-7(2) 7-6(1) 6-1 |
| 2004-02-16 | Buenos Aires | R32 | clay | Jose Acasuso | 6-3 7-6(6) |
| 2004-02-09 | Vina del Mar | R16 | clay | Gaston Gaudio | 6-3 6-3 |
| 2002-07-15 | Amersfoort | R16 | clay | Gaston Gaudio | 3-6 6-1 6-1 |
| 2001-02-19 | Buenos Aires | SF | clay | Jose Acasuso | 3-6 6-1 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 (150 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About