Head to head
0
Hard
2
1
Clay
1
Juan Monaco's wins on the left · John Isner's on the right · bar lengths share one scale
All meetings (4)
| 2013 | Houston | Clay | SF | John Isner | 1-6 6-4 6-4 |
| 2012 | Houston | Clay | F | Juan Monaco | 6-2 3-6 6-3 |
| 2012 | Indian Wells Masters | Hard | R32 | John Isner | 7-5 7-5 |
| 2010 | Auckland | Hard | R16 | John Isner | 5-7 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.