Sloane Stephens (15), United States, def. Jamie Hampton (23), United States, 6-1, 6-3.
Jelena Jankovic (9), Serbia, def. Kurumi Nara, Japan, 6-4, 7-6 (5).
Carla Suarez Navarro (18), Spain, def. Zheng Jie, China, 6-2, 6-4.
Roberto Bautista Agut and Daniel Gimeno-Traver, Spain, def. Florin Mergea, Romania, and Lukas Rosol, Czech Republic, 4-6, 7-5, 6-0.
Rohan Bopanna, India, and Edouard Roger-Vasselin (6), France, def. Bradley Klahn and Sam Querrey, United States, 6-2, 6-4.
Colin Fleming and Jonathan Marray (12), Britain, def. Ryan Harrison, United States, and Robert Lindstedt, Sweden, 6-3, 6-4.
Treat Huey, Philippines, and Dominic Inglot (16), Britain, def. Daniele Bracciali, Italy, and Lukas Dlouhy, Czech Republic, 6-3, 6-3.
Jamie Murray, Britain, and John Peers, Australia, def. Feliciano Lopez, Spain, and Andre Sa, Brazil, 6-7 (7), 7-5, 7-5.
Bob and Mike Bryan (1), United States, def. Eric Butorac, United States, and Frederik Nielsen, Denmark, 6-3, 6-2.|