Michaella Krajicek qualified for the main draw and pushed Peng Shuai to three tight sets before falling.
Maria Sharapova celebrated during her 60 64 first round win over Jarmila Groth in the feature night match Monday.
American teenager Coco Vandeweghe, a wildcard, surprised Tathiana Garbin in straight sets on Monday night.
Kimiko Date Krumm was two points away from winning against Sabine Lisicki in the first round but eventually fell, 76(5) 26 75.
Sabine Lisicki managed a smile as she was being chased by a bee during her first round match against Kimiko Date Krumm on Tuesday.
Daniela Hantuchova looked on as she rebounded from a first set loss to beat American hopeful Melanie Oudin in three sets.
Victoria Azarenka was the No.3 seed but didn't survive her opening match, a tough draw against former world No.1 Maria Sharapova.
Alona Bondarenko had her game face on but would eventually fall to Maria Sharapova in their third round match, 46 60 63.
Dinara Safina showed her frustration during a 75 46 64 third round loss to Zheng Jie under the lights Thursday.
Zheng Jie beat Dinara Safina for her second win over a reigning world No.1. She beat Ana Ivanovic at Wimbledon last year.
Agnieszka Radwanska served for the match at 5-4 in the third set but would fall to Sorana Cirstea, 76(4) 16 75.
Zheng Jie built a 64 31 lead but was unable to hold onto it as she fell to Samantha Stosur in three, 46 63 64.
Samantha Stosur reached her second straight hardcourt semifinal with a quarterfinal win over Zheng Jie on Friday.
Fans showed their support for Maria Sharapova during her quarterfinal match against Urszula Radwanska on Friday.
Maria Sharapova struggled with her form, hitting 61 unforced errors, but stayed in her semifinal with fighting spirit.
Italian No.1 Flavia Pennetta beat Russia's Maria Sharapova in three sets to reach her second straight final in Los Angeles.
Chuang Chia-Jung and Yan Zi shook hands with Maria Kirilenko and Agnieszka Radwanska after beating them in the doubles final.
Flavia Pennetta threw her arms in the air after hitting a forehand winner on match point against Samantha Stosur to win, 64 63.
Flavia Pennetta and Samantha Stosur shook hands after Pennetta beat the Australian in Sunday's singles final, 64 63.
Flavia Pennetta was congratulated by her coach, Gabriel Urpi, after winning her eighth Sony Ericsson WTA Tour singles title.