Head to head
2
Hard
2
1
Clay
0
1
Grass
0
Andy Roddick's wins on the left · Philipp Kohlschreiber's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 2011 | Cincinnati Masters | Hard | R64 | Philipp Kohlschreiber | 6-7(5) 7-5 6-1 |
| 2010 | Shanghai Masters | Hard | R64 | Andy Roddick | 6-3 2-1 RET |
| 2010 | Wimbledon | Grass | R32 | Andy Roddick | 7-5 6-7(5) 6-3 6-3 |
| 2008 | Australian Open | Hard | R32 | Philipp Kohlschreiber | 6-4 3-6 7-6(9) 6-7(3) 8-6 |
| 2005 | Australian Open | Hard | R16 | Andy Roddick | 6-3 7-6(6) 6-1 |
| 2003 | St. Poelten | Clay | R16 | Andy Roddick | 6-3 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.