Sam Querrey defeated Thanasi Kokkinakis 6-4 6-7 6-3 in the Madrid Masters round of 64 on clay. The result followed the form book — Sam Querrey came in leading the head-to-head 1–0. Sam Querrey extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-07-31 | Los Cabos | F | hard | Sam Querrey | 6-3 3-6 6-2 |
Averages from each player's recent completed matches (20 vs 17). ATP, WTA & Challenger.