Sam Querrey defeated Denis Gremelmayr 6-3 6-2 in the San Jose round of 16 on hard. The upset overturned the form book — Denis Gremelmayr came in leading the head-to-head 1–0, defending last year's round of 16. Sam Querrey claimed a first win over Denis Gremelmayr in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-02-18 | San Jose | R32 | hard | Denis Gremelmayr | 5-7 7-6(1) 6-3 |
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 26). ATP, WTA & Challenger.