Head to head
1
Hard
3
1
Clay
0
Ernests Gulbis's wins on the left · Sam Querrey's on the right · bar lengths share one scale
All meetings (5)
| 2014 | Australian Open | Hard | R64 | Sam Querrey | 6-2 6-3 6-4 |
| 2013 | Delray Beach | Hard | R16 | Ernests Gulbis | 6-4 4-6 7-6(4) |
| 2011 | Valencia | Hard | R32 | Sam Querrey | 6-3 6-4 |
| 2010 | Memphis | Hard | SF | Sam Querrey | 6-3 6-4 |
| 2009 | Roland Garros | Clay | R128 | Ernests Gulbis | 7-6(1) 6-1 3-6 6-1 |
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.