Alize Cornet defeated Samantha Stosur 6-3 6-2 in the US Open round of 128 on hard. The upset overturned the form book — Samantha Stosur came in leading the head-to-head 5–2, defending last year's round of 128. Alize Cornet narrowed the head-to-head to 5–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-07-16 | Gstaad | QF | clay | Alize Cornet | 6-4 7-6(2) |
| 2014-09-29 | Beijing | R16 | hard | Samantha Stosur | 6-4 6-2 |
| 2013-10-14 | Moscow | R16 | hard | Samantha Stosur | 6-4 6-1 |
| 2013-09-23 | Tokyo | R64 | hard | Samantha Stosur | 2-6 6-4 6-1 |
| 2012-10-15 | Moscow | R16 | hard | Samantha Stosur | 7-6(6) 7-5 |
| 2009-10-05 | Beijing | R64 | hard | Alize Cornet | 6-4 4-6 6-3 |
| 2009-08-24 | New Haven | R32 | hard | Samantha Stosur | 6-7(8) 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 (200 vs 197). ATP, WTA & Challenger.