Defending champion Maria Sharapova defeated Patty Schnyder in the final, 6–2, 3–6, 6–0 to win the singles tennis title at the 2007 Southern California Open.
Seeds The top 8 seeds received a bye into the second round.
Draw
Key Q = Qualifier WC = Wild card LL = Lucky loser r = Retired w/o = Walkover
Finals
Top half
Section 1
Section 2
Bottom half
Section 3
Section 4
External links Official WTA Tour website.