Dominic Thiem defeated Sam Groth 7-5 6-2 in the Miami Masters round of 64 on hard. The result followed the form book — Dominic Thiem came in leading the head-to-head 2–0, defending last year's quarter-final. Dominic Thiem extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-01-02 | Brisbane | R16 | hard | Dominic Thiem | 7-6(5) 6-3 |
| 2016-06-06 | Stuttgart | R16 | grass | Dominic Thiem | 7-6(3) 7-6(2) |
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 97). ATP, WTA & Challenger.