Julien Benneteau and Nicolas Mahut, France, def. Sanchai and Sonchat Ratiwatana, Thailand, 6-3, 6-3.
Dennis Novikov and Michael Redlicki, United States, def. Bobby Reynolds and Michael Russell, United States, 6-4, 2-6, 7-6 (7).
Sergiy Stakhovsky, Ukraine, and Viktor Troicki, Serbia, def. Michael Kohlmann and Bjorn Phau, Germany, 6-3, 6-4.
Bob and Mike Bryan (2), United States, def. Steve Darcis and David Goffin, Belgium, 6-1, 6-4.
Matthew Ebden and Bernard Tomic, Australia, def. Mahesh Bhupathi and Rohan Bopanna (8), India, 6-3, 7-6 (4).
Treat Conrad Huey, Philippines, and Dominic Inglot, Britain, def. James Blake and Sam Querrey, United States, 6-1, 7-6 (7).
Benoit Paire and Edouard Roger-Vasselin, France, def. Ruben Ramirez Hidalgo and Albert Ramos, Spain, 6-1, 6-3.
Alexander Peya, Austria, and Bruno Soares (15), Brazil, def. Jamie Murray, Britain, and Andre Sa, Brazil, 6-2, 6-2.
Thomaz Bellucci and Joao Souza, Brazil, def. Ivo Karlovic, Croatia, and Frank Moser, Germany, 7-6 (4), 7-6 (5).
Vania King, United States, and Yaroslava Shvedova (5), Kazakhstan, def. Polona Hercog and Andreja Klepac, Slovenia, 6-0, 6-1.
Darija Jurak, Croatia, and Katalin Marosi, Hungary, def. Kateryna Bondarenko, Ukraine, and Tsvetana Pironkova, Bulgaria, 6-2, 3-6, 6-4.
Raquel Kops-Jones and Abigail Spears (9), United States, def. Dominika Cibulkova and Daniela Hantuchova, Slovakia, 4-6, 6-1, 6-2.
Irina Falconi and Maria Sanchez, United States, def. Alexandra Cadantu, Romania, and Mathilde Johansson, France, 6-2, 6-3.
Silvia Soler-Espinosa and Carla Suarez Navarro, Spain , def. Grace Min and Melanie Oudin, United States, 6-1, 6-4.
Mona Barthel and Tatjana Malek, Germany, def. Jelena Jankovic and Bojana Jovanovski, Serbia, 2-6, 6-1, 6-4.
Andrea Hlavackova and Lucie Hradecka (3), Czech Republic, def. Melinda Czink and Agnes Szavay, Hungary, 6-2, 6-4.
Madison Keys and Jessica Pegula, United States, def. Akgul Amanmuradova, Uzbekistan, and Monica Niculescu, Romania, 6-2, 6-2.
Sara Errani and Roberta Vinci (2), Italy, def. Varvara Lepchenko, United States, and Zheng Saisai, China, 6-4, 7-5.