Dominika Cibulková was the defending champion, but lost in the first round to

Ana Ivanovic Ana Schweinsteiger ( sr, Ана Швајнштајгер / ''Ana Švajnštajger''; born 6 November 1987), professionally known by her birth name Ana Ivanovic (Ана Ивановић / ''Ana Ivanović'', ), is a Serbian former world No. 1 tenn ...

. Samantha Stosur won the title, defeating Victoria Azarenka in the final for the only time in her career with the score 6–2, 6–3.

Seeds

The top four

seeds A seed is an embryonic plant enclosed in a protective outer covering, along with a food reserve. The formation of the seed is a part of the process of reproduction in seed plants, the spermatophytes, including the gymnosperm and angiosperm pl ...

receive a bye into the second round.

Draw

Finals

Top half

Bottom half

Qualifying

Seeds

Qualifiers

Qualifying draw

First qualifier

Second qualifier

Third qualifier

Fourth qualifier

External links

Main draw

Qualifying draw
{{DEFAULTSORT:Southern California Open - Singles,2013 2013 WTA Tour

2013 Singles Thirteen or 13 may refer to: * 13 (number), the natural number following 12 and preceding 14 * One of the years 13 BC, AD 13, 1913, 2013 Music * 13AD (band), an Indian classic and hard rock band Albums * ''13'' (Black Sabbath album), 2013 ...