Head to head
5
Hard
2
1
Grass
0
Andy Roddick's wins on the left · Sam Querrey's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (8)
| 2012 | Eastbourne | Grass | R32 | Andy Roddick | 5-2 RET |
| 2010 | Basel | Hard | R32 | Andy Roddick | 7-5 7-6(6) |
| 2010 | Memphis | Hard | QF | Sam Querrey | 7-5 3-6 6-1 |
| 2010 | San Jose | Hard | SF | Andy Roddick | 2-6 7-6(5) 7-6(4) |
| 2009 | Cincinnati Masters | Hard | R32 | Sam Querrey | 7-6(11) 7-6(3) |
| 2009 | Washington | Hard | R16 | Andy Roddick | 7-6(4) 6-4 |
| 2009 | Memphis | Hard | QF | Andy Roddick | 6-4 3-6 6-3 |
| 2007 | San Jose | Hard | R16 | Andy Roddick | 6-4 7-6(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.