Aug 1 (OPTA) - Results from the WTA Premier, Stanford Women's Singles matches on Tuesday .. 1st Round .. Victoria Azarenka (BLR) beat Kateryna Bondarenko (UKR) 6-3 6-7(7) 7-5 Vera Lapko (BLR) beat 7-Shuai Zhang (CHN) 7-6(2) 6-0 Heather Watson (GBR) beat Claire Liu (USA) 6-4 3-6 6-4 8-Timea Babos (HUN) beat Kristina Mladenovic (FRA) 6-4 6-2 Ashley Kratzer (USA) beat Alison Riske (USA) 6-4 4-6 7-5 5-Mihaela Buzarnescu (ROU) beat Sachia Vickery (USA) 6-3 4-6 6-3