Gustavo Kuerten defeated Gaston Gaudio 6-1 6-4 in the Canada Masters round of 32 on hard. The upset overturned the form book — Gaston Gaudio came in leading the head-to-head 3–2, defending last year's round of 32. Gustavo Kuerten narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-04-26 | Barcelona | QF | clay | Gaston Gaudio | 3-6 7-6(5) 2-1 RET |
| 2003-05-26 | Roland Garros | R32 | clay | Gustavo Kuerten | 7-6(1) 7-5 5-7 6-3 |
| 2003-05-05 | Rome Masters | R64 | clay | Gaston Gaudio | 6-3 2-6 6-4 |
| 2002-04-29 | Mallorca | QF | grass | Gaston Gaudio | 7-5 6-0 |
| 2001-01-15 | Australian Open | R128 | hard | Gustavo Kuerten | 7-5 6-7(6) 6-3 7-5 |
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.