Head to head
1
Hard
1
1
Clay
0
1
Grass
0
Gilles Muller's wins on the left · Tommy Haas's on the right · bar lengths share one scale
All meetings (4)
| 2017 | Madrid Masters | Clay | R64 | Gilles Muller | 6-4 7-6(7) |
| 2011 | Wimbledon | Grass | R128 | Gilles Muller | 7-6(5) 7-6(3) 3-6 6-3 |
| 2008 | US Open | Hard | R64 | Gilles Muller | 2-6 2-6 7-6(5) 6-3 6-3 |
| 2006 | Delray Beach | Hard | QF | Tommy Haas | 6-3 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.