Ashleigh Barty defeated Samantha Stosur 6-0 6-3 in the Miami round of 32 on hard. The upset overturned the form book — Samantha Stosur came in leading the head-to-head 1–0, defending last year's round of 128, but Ashleigh Barty had been the form player, winning 6 of their last 6 on hard. Ashleigh Barty claimed a first win over Samantha Stosur in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-03-20 | Miami | R64 | hard | Samantha Stosur | 6-4 6-4 |
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 (142 vs 62). ATP, WTA & Challenger.