Head to head
1
Hard
2
0
Clay
2
Juan Monaco's wins on the left · Agustin Calleri's on the right · bar lengths share one scale
All meetings (5)
| 2008 | Buenos Aires | Clay | R32 | Agustin Calleri | 6-4 2-6 6-3 |
| 2007 | US Open | Hard | R32 | Juan Monaco | 7-6(5) 6-2 6-4 |
| 2007 | Auckland | Hard | QF | Agustin Calleri | 4-6 6-4 6-3 |
| 2006 | Miami Masters | Hard | R128 | Agustin Calleri | 6-2 6-1 |
| 2005 | Acapulco | Clay | R16 | Agustin Calleri | 7-6(4) 6-3 |
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.