Head to head
2
Hard
1
3
Clay
1
1
Carpet
0
Agustin Calleri's wins on the left · Nicolas Massu's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (8)
| 2009 | Vina del Mar | Clay | R32 | Agustin Calleri | 7-6(4) 6-1 |
| 2006 | New Haven | Hard | QF | Agustin Calleri | 6-3 3-6 6-4 |
| 2006 | Kitzbuhel | Clay | R16 | Agustin Calleri | 6-2 7-6(4) |
| 2006 | Indian Wells Masters | Hard | R128 | Nicolas Massu | 6-1 5-7 7-6(10) |
| 2005 | Metz | Hard | R32 | Agustin Calleri | 7-5 7-5 |
| 2004 | Lyon | Carpet | R32 | Agustin Calleri | 6-3 6-4 |
| 2003 | Buenos Aires | Clay | R32 | Agustin Calleri | 6-4 2-6 6-4 |
| 2002 | Buenos Aires | Clay | F | Nicolas Massu | 2-6 7-6(5) 6-2 |
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.