Head to head
2
Hard
2
0
Clay
1
Paul-Henri Mathieu's wins on the left · Nicolas Kiefer's on the right · bar lengths share one scale
All meetings (5)
| 2008 | Beijing Olympics | Hard | R16 | Paul-Henri Mathieu | 6-3 7-5 |
| 2008 | Hamburg Masters | Clay | R64 | Nicolas Kiefer | 6-4 6-4 |
| 2007 | Mumbai | Hard | R32 | Nicolas Kiefer | 6-4 6-3 |
| 2006 | Indian Wells Masters | Hard | R64 | Paul-Henri Mathieu | 7-6(5) 4-6 6-2 |
| 2003 | Long Island | Hard | R32 | Nicolas Kiefer | 4-6 7-6(4) 6-3 |
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.