Head to head
4
Hard
2
6
Clay
2
Roger Federer's wins on the left · Gael Monfils's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (14)
| 2019 | Madrid Masters | Clay | R16 | Roger Federer | 6-0 4-6 7-6(3) |
| 2015 | Roland Garros | Clay | R16 | Roger Federer | 6-3 4-6 6-4 6-1 |
| 2015 | Monte Carlo Masters | Clay | R16 | Gael Monfils | 6-4 7-6(5) |
| 2014 | Davis Cup WG F: FRA vs SUI | Clay | RR | Gael Monfils | 6-1 6-4 6-3 |
| 2014 | US Open | Hard | QF | Roger Federer | 4-6 3-6 6-4 7-5 6-2 |
| 2014 | Cincinnati Masters | Hard | R16 | Roger Federer | 6-4 4-6 6-3 |
| 2013 | Shanghai Masters | Hard | R16 | Gael Monfils | 6-4 6-7(5) 6-3 |
| 2011 | Roland Garros | Clay | QF | Roger Federer | 6-4 6-3 7-6(3) |
| 2010 | Paris Masters | Hard | SF | Gael Monfils | 7-6(7) 6-7(1) 7-6(4) |
| 2009 | Roland Garros | Clay | QF | Roger Federer | 7-6(6) 6-2 6-4 |
| 2008 | Roland Garros | Clay | SF | Roger Federer | 6-2 5-7 6-3 7-5 |
| 2008 | Monte Carlo Masters | Clay | R16 | Roger Federer | 6-3 6-4 |
| 2008 | Miami Masters | Hard | R64 | Roger Federer | 6-3 6-4 |
| 2006 | Doha | Hard | F | Roger Federer | 6-3 7-6(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.