Head to head
0
Hard
2
1
Clay
1
1
Grass
0
Gilles Simon's wins on the left · Paul-Henri Mathieu's on the right · bar lengths share one scale
All meetings (5)
| 2016 | Estoril | Clay | R16 | Gilles Simon | 3-6 6-2 6-1 |
| 2012 | Wimbledon | Grass | R128 | Gilles Simon | 6-3 5-4 RET |
| 2008 | Marseille | Hard | QF | Paul-Henri Mathieu | 6-3 6-4 |
| 2007 | New Haven | Hard | QF | Paul-Henri Mathieu | 6-4 6-3 |
| 2007 | Roland Garros | Clay | R64 | Paul-Henri Mathieu | 3-6 6-4 6-1 7-6(2) |
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.