Caroline Wozniacki defeated Sloane Stephens 7-6 6-2 in the New Haven quarter-final on hard. The result followed the form book — Caroline Wozniacki came in leading the head-to-head 1–0, defending last year's semi-final. Caroline Wozniacki extended the head-to-head to 2–0.
Wozniacki C. took it in straight sets.
Wozniacki C. and Stephens S. faced 12 of the same opponents in the last 12 months. Wozniacki C. went 10–7 (59%) against them, Stephens S. 6–8 (43%). Results against comparable opponents are close (3 : 4 better-results split).