Results Wednesday at the 23-million-dollar US Open (x indicates new result).

Women's singles, second round

Gisela Dulko, Argentina, def Victoria Azarenka, 10, Belarus, 5-1, retired, heat exhaustion

x Virginie Razzano, France, def Marion Bartoli, 13, France, 7-5, 6-4

Ana Ivanovic, Serbia, def Jie Zheng, China, 6-3, 6-0

Anastasia Pavlyuchenkova, Russia, def Sania Mirza, India, 6-2, 6-4

Men's singles, first round

x Andy Murray, 4, Britain, def Lukas Lacko, Slovakia, 6-3, 6-2, 6-2

x Michael Llodra, France, def Tomas Berdych, 7, Czech Republic, 7-6 (7-3), 6-4, 6-4

Nicolas Almagro, 14, Spain, def Potito Starace, Italy, 4-6, 6-4, 6-4, 7-6 (7-5)

x Ryan Harrison, US, def Ivan Ljubicic, 15, Croatia, 6-3, 6-7 (4-7), 6-3, 6-4

Guillermo Garcia-Lopez, Spain, def Lukasz Kubot, Poland, 6-3, 6-2, 7-6 (7-4)

Victor Hanescu, Romania, def Carlos Berlocq, Argentina, 6-2, 6-4, 6-3

Dustin Brown, Jamaica, def Ruben Ramirez Hidalgo, Spain, 6-4, 7-6 (8-6), 7-5

Sam Querrey, US, def Bradley Klahn, US, 6-3, 4-6, 7-5, 6-4

x Marcel Granollers, Spain, def Andreas Seppi, Italy, 2-6, 5-7, 6-3, 6-2, 6-3