Head to head
2
Hard
3
1
Clay
0
Tommy Haas's wins on the left · John Isner's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 2013 | Roland Garros | Clay | R32 | Tommy Haas | 7-5 7-6(4) 4-6 6-7(10) 10-8 |
| 2013 | San Jose | Hard | SF | Tommy Haas | 6-3 6-4 |
| 2009 | Cincinnati Masters | Hard | R64 | John Isner | 7-6(5) 5-7 7-6(3) |
| 2008 | Indianapolis | Hard | R16 | Tommy Haas | 6-3 6-4 |
| 2008 | San Jose | Hard | R16 | John Isner | 4-6 7-6(6) 6-3 |
| 2007 | Washington | Hard | QF | John Isner | 6-4 6-7(6) 7-6(5) |
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.