Head to head
1
Hard
2
1
Clay
1
Xavier Malisse's wins on the left · John Isner's on the right · bar lengths share one scale
All meetings (5)
| 2013 | San Jose | Hard | QF | John Isner | 7-6(8) 6-2 |
| 2012 | US Open | Hard | R128 | John Isner | 6-3 7-6(5) 5-7 7-6(9) |
| 2012 | Nice | Clay | R16 | John Isner | 7-6(3) 7-6(5) |
| 2010 | Washington | Hard | R16 | Xavier Malisse | 6-4 3-6 7-6(5) |
| 2010 | Houston | Clay | R16 | Xavier Malisse | 7-6(3) 6-7(7) 7-6(3) |
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.