Samantha Stosur defeated Roberta Vinci 6-4 6-1 in the Toronto quarter-final on hard. Samantha Stosur extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-01-11 | Sydney | R32 | hard | Samantha Stosur | 4-6 7-5 7-5 |
| 2013-02-18 | Dubai | QF | hard | Roberta Vinci | 6-2 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 (197 vs 200). ATP, WTA & Challenger.