Head to head
0
Hard
4
0
Grass
1
1
Carpet
0
Sjeng Schalken's wins on the left · Andy Roddick's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 2004 | Wimbledon | Grass | QF | Andy Roddick | 7-6(4) 7-6(9) 6-3 |
| 2004 | Australian Open | Hard | R16 | Andy Roddick | 6-1 6-2 6-3 |
| 2003 | US Open | Hard | QF | Andy Roddick | 6-4 6-2 6-3 |
| 2003 | Indianapolis | Hard | SF | Andy Roddick | 6-3 6-2 |
| 2001 | Paris Masters | Carpet | R32 | Sjeng Schalken | 4-6 6-3 7-5 |
| 2001 | Washington | Hard | F | Andy Roddick | 6-2 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.