Head to head
4
Hard
0
1
Grass
1
Sam Querrey's wins on the left · Alejandro Falla's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 2014 | Cincinnati Masters | Hard | R64 | Sam Querrey | 6-3 6-1 |
| 2013 | Memphis | Hard | R32 | Sam Querrey | 6-3 6-3 |
| 2013 | San Jose | Hard | QF | Sam Querrey | 6-3 4-6 7-5 |
| 2012 | Memphis | Hard | R32 | Sam Querrey | 2-6 6-3 6-4 |
| 2008 | Nottingham | Grass | R32 | Sam Querrey | 6-3 6-4 |
| 2007 | Wimbledon | Grass | R128 | Alejandro Falla | 7-6(5) 6-1 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.