Head to head
1
Hard
1
2
Clay
2
1
Carpet
0
Gilles Simon's wins on the left · Juan Monaco's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (7)
| 2016 | Miami Masters | Hard | R64 | Gilles Simon | 7-5 6-1 |
| 2013 | Davis Cup WG QF: ARG vs FRA | Clay | RR | Juan Monaco | 7-6(2) 6-2 6-4 |
| 2011 | Paris Masters | Hard | R32 | Juan Monaco | 6-4 6-0 |
| 2008 | Lyon | Carpet | R32 | Gilles Simon | 2-6 6-4 6-1 |
| 2007 | Bastad | Clay | R16 | Gilles Simon | 6-4 6-4 |
| 2006 | Bucharest | Clay | R32 | Gilles Simon | 7-5 3-6 6-3 |
| 2005 | Casablanca | Clay | QF | Juan Monaco | 4-6 6-2 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.