The 2012 Mercury Insurance Open was a women's tennis tournament played on outdoor hard courts. It was the 3rd edition of the Southern California Open since the tournament left the tour in 2007. It was classified as one of the WTA Premier tournaments of the 2012 WTA Tour. It took place in Carlsbad, California, United States from July 16 through July 22, 2012. Second-seeded Dominika Cibulková won the singles title.

Finals

Singles

Slovakia Dominika Cibulková defeated France Marion Bartoli, 6–1, 7–5

  • It was Cibulková's only singles title of the year and the 2nd of her career.

Doubles

United States Raquel Kops-Jones / United States Abigail Spears defeated United States Vania King / Russia Nadia Petrova, 6–2, 6–4

Singles main-draw entrants

Seeds

CountryPlayerRank1Seed
FRAMarion Bartoli101
SVKDominika Cibulková152
SRBJelena Janković203
RUSNadia Petrova214
USAChristina McHale285
SVKDaniela Hantuchová336
BELYanina Wickmayer377
RSAChanelle Scheepers428
  • 1 Rankings are as of July 9, 2012

Other entrants

The following players received wildcards into the singles main draw:

The following players received entry from the qualifying draw:

The following players received entry as lucky loser:

Withdrawals

Retirements

Doubles main-draw entrants

Seeds

CountryPlayerCountryPlayerRank1Seed
USALiezel HuberUSALisa Raymond21
USAVania KingRUSNadia Petrova192
USARaquel Kops-JonesUSAAbigail Spears393
RSANatalie GrandinCZEVladimíra Uhlířová474
  • 1 Rankings are as of July 9, 2012

Other entrants

The following pair received wildcard into the doubles main draw:

External links