[1] Serena Williams (USA) vs [Q] Andrea Hlavackova (CZE)
Anna-Lena Friedsam (GER) vs [Q] Alexa Glatch (USA)
Zheng Saisai (CHN) vs Lucie Hradecka (CZE)
Maria-Teresa Torro-Flor (ESP) vs [27] Victoria Azarenka (BLR)
[22] Barbora Strycova (CZE) vs Tsvetana Pironkova (BUL)
Denisa Allertova (CZE) vs [Q] Johanna Konta (GBR)
[WC] Mathilde Johansson (FRA) vs Heather Watson (GBR)
Sloane Stephens (USA) vs [15] Venus Williams (USA)
[10] Andrea Petkovic (GER) vs Shelby Rogers (USA)
[Q] Lourdes Dominguez Lino (ESP) vs Christina McHale (USA)
Carina Witthoeft (GER) vs Katerina Siniakova (CZE)
Alison Riske (USA) vs [17] Sara Errani (ITA)
[25] Jelena Jankovic (SRB) vs [Q] Sesil Karatantcheva (BUL)
Irina Falconi (USA) vs [WC] Manon Arcangioli (FRA)
Coco Vandeweghe (USA) vs Julia Goerges (GER)
Karin Knapp (ITA) vs [5] Caroline Wozniacki (DEN)