Head to head
0
Hard
1
1
Clay
2
0
Carpet
1
Agustin Calleri's wins on the left · David Nalbandian's on the right · bar lengths share one scale
All meetings (5)
| 2008 | Barcelona | Clay | R32 | David Nalbandian | 1-6 7-6(2) 6-3 |
| 2003 | Hamburg Masters | Clay | SF | Agustin Calleri | 6-4 6-1 |
| 2003 | Scottsdale | Hard | R32 | David Nalbandian | 7-6(3) 6-3 |
| 2002 | Basel | Carpet | R16 | David Nalbandian | 6-2 3-0 RET |
| 2002 | Roland Garros | Clay | R128 | David Nalbandian | 6-2 5-7 6-2 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.