Ernests Gulbis defeated Sam Querrey 6-4 4-6 7-6 in the Delray Beach round of 16 on hard. The upset overturned the form book — Sam Querrey came in leading the head-to-head 3–1. Ernests Gulbis narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-01-13 | Australian Open | R64 | hard | Sam Querrey | 6-2 6-3 6-4 |
| 2011-10-31 | Valencia | R32 | hard | Sam Querrey | 6-3 6-4 |
| 2010-02-15 | Memphis | SF | hard | Sam Querrey | 6-3 6-4 |
| 2009-05-25 | Roland Garros | R128 | clay | Ernests Gulbis | 7-6(1) 6-1 3-6 6-1 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About