Head to head
1
Hard
0
3
Clay
3
0
Grass
1
Gaston Gaudio's wins on the left · Guillermo Canas's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (8)
| 2004 | Stuttgart | Clay | F | Guillermo Canas | 5-7 6-2 6-0 1-6 6-3 |
| 2004 | Roland Garros | Clay | R128 | Gaston Gaudio | 6-2 2-6 4-6 6-3 6-2 |
| 2004 | Acapulco | Clay | R16 | Guillermo Canas | 6-4 6-3 |
| 2002 | Indian Wells Masters | Hard | R64 | Gaston Gaudio | 6-4 6-2 |
| 2001 | Wimbledon | Grass | R128 | Guillermo Canas | 1-6 6-1 3-6 6-2 7-5 |
| 2001 | Acapulco | Clay | QF | Guillermo Canas | 6-4 6-4 |
| 2000 | Estoril | Clay | R32 | Gaston Gaudio | 6-3 6-4 |
| 1999 | Palermo | Clay | R32 | Gaston Gaudio | 6-0 6-4 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.