Head to head
2
Hard
1
0
Clay
1
Andy Roddick's wins on the left · Gilles Simon's on the right · bar lengths share one scale
All meetings (4)
| 2011 | Rome Masters | Clay | R64 | Gilles Simon | 6-3 6-3 |
| 2010 | Washington | Hard | R16 | Gilles Simon | 6-3 6-3 |
| 2008 | Paris Masters | Hard | R16 | Andy Roddick | 6-3 7-5 |
| 2007 | Miami Masters | Hard | R32 | Andy Roddick | 6-4 6-4 |
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.