Sam Stosur won the Southern California Open on Sunday for her first title in nearly two years, beating top-seeded Victoria Azarenka 6-2, 6-3.
The fifth-seeded Stosur had lost all of her previous eight matches against Azarenka, winning only two sets.
The title was Stosur's third in her career and the first since she won her only major, the 2011 U.S. Open.
Azarenka, the two-time Australian Open champion, played another loose match. She committed 32 unforced errors, including seven double faults, and had only 11 winners.
Stosur, playing in her first final since October, hit 20 winners compared to 29 unforced errors, but played some key points, including saving 11 of 12 break points.