Head to head
0
Hard
6
1
Clay
1
Guillermo Garcia-Lopez'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)
| 2019 | Houston | Clay | R16 | Sam Querrey | 6-4 6-3 |
| 2019 | Acapulco | Hard | R32 | Sam Querrey | 6-3 6-2 |
| 2016 | Winston-Salem | Hard | R32 | Sam Querrey | 6-3 6-7(5) 7-5 |
| 2016 | Geneva | Clay | R32 | Guillermo Garcia-Lopez | 7-6(5) 6-4 |
| 2014 | US Open | Hard | R64 | Sam Querrey | 6-3 6-4 6-4 |
| 2014 | Winston-Salem | Hard | QF | Sam Querrey | 6-7(3) 6-2 6-4 |
| 2013 | Winston-Salem | Hard | R32 | Sam Querrey | 4-6 6-3 6-4 |
| 2008 | Delray Beach | Hard | R16 | Sam Querrey | 6-4 5-7 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.