Head to head
1
Hard
1
1
Clay
1
0
Grass
1
Nikolay Davydenko's wins on the left · Guillermo Canas's on the right · bar lengths share one scale
All meetings (6)
| 2007 | Roland Garros | Clay | QF | Nikolay Davydenko | 7-5 6-4 6-4 |
| 2007 | Barcelona | Clay | QF | Guillermo Canas | W/O |
| 2005 | Australian Open | Hard | R16 | Nikolay Davydenko | 6-3 6-4 6-3 |
| 2004 | Stuttgart | Clay | SF | Guillermo Canas | 3-6 6-1 6-2 |
| 2004 | 's-Hertogenbosch | Grass | R32 | Guillermo Canas | 6-4 6-4 |
| 2001 | Vienna | Hard | R32 | Guillermo Canas | 7-6(6) 7-5 |
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.