Head to head
4
Hard
1
0
Grass
1
John Isner's wins on the left · Gilles Muller's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 2017 | Atlanta | Hard | SF | John Isner | 6-4 6-2 |
| 2016 | Queen's Club | Grass | R16 | Gilles Muller | 3-6 7-6(16) 7-6(7) |
| 2015 | Australian Open | Hard | R32 | Gilles Muller | 7-6(4) 7-6(6) 6-4 |
| 2012 | Memphis | Hard | R32 | John Isner | 7-6(1) 7-6(4) |
| 2011 | Atlanta | Hard | SF | John Isner | 7-5 6-7(3) 6-1 |
| 2010 | Atlanta | Hard | R16 | John Isner | 4-6 7-6(6) 7-6(7) |
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.