Head to head
1
Hard
2
0
Grass
1
Gilles Simon's wins on the left · Ivo Karlovic's on the right · bar lengths share one scale
All meetings (4)
| 2015 | Cincinnati Masters | Hard | R64 | Ivo Karlovic | 6-4 6-7(3) 6-3 |
| 2011 | Indian Wells Masters | Hard | R32 | Ivo Karlovic | 6-3 6-3 |
| 2008 | Madrid Masters | Hard | QF | Gilles Simon | 7-6(1) 4-6 7-6(2) |
| 2007 | Nottingham | Grass | R16 | Ivo Karlovic | 7-6(4) 6-7(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.