Head to head
2
Hard
2
1
Clay
0
Jurgen Melzer's wins on the left · John Isner's on the right · bar lengths share one scale
All meetings (5)
| 2015 | Indian Wells Masters | Hard | R64 | John Isner | 6-3 6-4 |
| 2014 | Rome Masters | Clay | R64 | Jurgen Melzer | 7-6(7) 6-3 |
| 2012 | Winston-Salem | Hard | R16 | John Isner | 6-4 6-3 |
| 2012 | Memphis | Hard | QF | Jurgen Melzer | 6-3 7-6(6) |
| 2008 | Memphis | Hard | R32 | Jurgen Melzer | 6-7(8) 6-3 7-6(4) |
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.