Head to head
6
Hard
3
1
Clay
0
0
Grass
1
2
Carpet
0
Tommy Haas's wins on the left · Xavier Malisse's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (13)
| 2010 | Memphis | Hard | R32 | Xavier Malisse | 6-4 3-6 6-4 |
| 2006 | Delray Beach | Hard | F | Tommy Haas | 6-3 3-6 7-6(5) |
| 2005 | Los Angeles | Hard | R16 | Xavier Malisse | 1-6 6-3 6-4 |
| 2005 | Memphis | Hard | QF | Tommy Haas | 6-4 6-3 |
| 2005 | Australian Open | Hard | R128 | Tommy Haas | 6-3 6-2 6-3 |
| 2004 | Paris Masters | Carpet | R32 | Tommy Haas | 6-1 7-6(1) |
| 2004 | Madrid Masters | Hard | R64 | Tommy Haas | 6-4 6-1 |
| 2004 | Wimbledon | Grass | R64 | Xavier Malisse | 3-6 6-3 6-2 6-4 |
| 2004 | Monte Carlo Masters | Clay | R64 | Tommy Haas | 6-3 6-4 |
| 2001 | Paris Masters | Carpet | R16 | Tommy Haas | 7-5 6-1 |
| 2001 | San Jose | Hard | QF | Xavier Malisse | 5-7 6-3 5-1 RET |
| 2001 | Adelaide | Hard | R16 | Tommy Haas | 7-5 6-3 |
| 1999 | Cincinnati Masters | Hard | R64 | Tommy Haas | 7-5 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.