Samantha Stosur defeated Christina Mchale 6-3 6-2 in the New Haven qualifying round 1 on hard. The result followed the form book — Samantha Stosur came in leading the head-to-head 4–1. Samantha Stosur extended the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-04-16 | Fed Cup WG R1: AUS vs USA | RR | hard | Christina Mchale | 3-6 6-1 7-5 |
| 2016-03-07 | Indian Wells | R32 | hard | Samantha Stosur | 6-4 2-6 6-4 |
| 2014-06-09 | Birmingham | R32 | grass | Samantha Stosur | 6-1 6-3 |
| 2012-05-07 | Madrid | R32 | clay | Samantha Stosur | 2-6 6-4 6-0 |
| 2010-07-26 | Stanford | R16 | hard | Samantha Stosur | 6-1 7-5 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.