Gaston Gaudio defeated Franco Squillari 2-6 6-1 6-4 in the Gstaad round of 32 on clay. The upset overturned the form book — Franco Squillari came in leading the head-to-head 4–1, defending last year's quarter-final. Gaston Gaudio narrowed the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-02-23 | Costa Do Sauipe | R16 | hard | Franco Squillari | 7-6(3) 6-3 |
| 2001-05-14 | Hamburg Masters | R16 | clay | Franco Squillari | 6-4 6-3 |
| 2000-08-07 | Cincinnati Masters | R64 | hard | Franco Squillari | 6-7(4) 7-5 6-0 |
| 2000-07-17 | Stuttgart Outdoor | F | clay | Franco Squillari | 6-2 3-6 4-6 6-4 6-2 |
| 2000-07-10 | Gstaad | QF | clay | Gaston Gaudio | 6-1 4-1 RET |
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 87). ATP, WTA & Challenger.