Head to head
3
Hard
2
1
Clay
0
Jurgen Melzer's wins on the left · Ivo Karlovic's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 2014 | Vienna | Hard | R16 | Ivo Karlovic | 6-4 7-6(1) |
| 2012 | Australian Open | Hard | R128 | Ivo Karlovic | 7-6(3) 7-5 6-3 |
| 2007 | Cincinnati Masters | Hard | R64 | Jurgen Melzer | 7-6(4) 7-6(2) |
| 2007 | Australian Open | Hard | R128 | Jurgen Melzer | 6-4 6-4 7-6(6) |
| 2006 | Munich | Clay | QF | Jurgen Melzer | 7-6(4) 6-1 |
| 2004 | Miami Masters | Hard | R128 | Jurgen Melzer | 6-4 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.