Head to head
1
Hard
0
2
Clay
0
Juan Monaco's wins on the left · Martin Vassallo Arguello's on the right · bar lengths share one scale
All meetings (3)
| 2009 | Valencia | Hard | R32 | Juan Monaco | 6-3 6-2 |
| 2009 | Buenos Aires | Clay | R16 | Juan Monaco | 6-4 2-6 6-2 |
| 2008 | Vina del Mar | Clay | R16 | Juan Monaco | 6-3 4-6 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.