Head to head
3
Hard
1
Sam Querrey's wins on the left · Vincent Spadea's on the right · bar lengths share one scale
All meetings (4)
| 2008 | Indianapolis | Hard | R16 | Sam Querrey | 4-6 6-3 6-4 |
| 2008 | Delray Beach | Hard | QF | Sam Querrey | 6-2 6-4 |
| 2006 | Los Angeles | Hard | R32 | Sam Querrey | 7-5 6-4 |
| 2006 | San Jose | Hard | R32 | Vincent Spadea | 6-7(4) 6-4 6-2 |
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.