Samantha Stosur defeated Coco Vandeweghe 6-3 6-4 in the US Open round of 64 on hard. The upset overturned the form book — Coco Vandeweghe came in leading the head-to-head 4–0, defending last year's round of 128. Samantha Stosur claimed a first win over Coco Vandeweghe in five meetings, narrowing the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-04-16 | Fed Cup WG R1: AUS vs USA | RR | hard | Coco Vandeweghe | 2-6 7-5 6-4 |
| 2015-06-29 | Wimbledon | R32 | grass | Coco Vandeweghe | 6-2 6-0 |
| 2015-01-19 | Australian Open | R64 | hard | Coco Vandeweghe | 6-4 6-4 |
| 2014-03-17 | Miami | R32 | hard | Coco Vandeweghe | 5-7 7-5 7-5 |
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.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About