2011 Mercury Insurance Open
Tennis tournament
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The 2011 Mercury Insurance Open was a women's tennis tournament played on outdoor hard courts. It is the 2nd edition of the Southern California Open since the tournament left the tour in 2007. It is classified as one of the WTA Premier tournaments of the 2011 WTA Tour. It takes place in Carlsbad, California, United States. Petra Kvitova and Kim Clijsters withdrew due to injuries.[1][2] Third-seeded Agnieszka Radwańska won the singles title.
| 2011 Mercury Insurance Open | |
|---|---|
| Date | August 1–7 |
| Edition | 31st |
| Category | WTA Premier tournaments |
| Draw | 56S / 16D |
| Prize money | $721,000 |
| Surface | Hard / outdoor |
| Location | Carlsbad, California, US |
| Champions | |
| Singles | |
 Agnieszka Radwańska | |
| Doubles | |
 Květa Peschke /  Katarina Srebotnik | |
Finals
Singles
Agnieszka Radwańska defeated 
Vera Zvonareva 6–3, 6–4.
- It was Radwańska's first title of the year and fifth overall.
Doubles
Květa Peschke / Katarina Srebotnik defeated 
Raquel Kops-Jones / Abigail Spears 6–0, 6–2
Entrants
Seeds
| Nation | Player | Ranking* | Seed |
|---|---|---|---|
| RUS |
Vera Zvonareva | 3 | 1 |
 GER |
Andrea Petkovic | 11 | 2 |
| POL |
Agnieszka Radwańska | 14 | 3 |
 CHN |
Peng Shuai | 16 | 4 |
 SRB |
Ana Ivanovic | 17 | 5 |
 SVK |
Dominika Cibulková | 19 | 6 |
| GER |
Julia Görges | 20 | 7 |
| SVK |
Daniela Hantuchová | 21 | 8 |
 ITA |
Roberta Vinci | 22 | 9 |
| ITA |
Flavia Pennetta | 23 | 10 |
| RUS |
Maria Kirilenko | 25 | 11 |
| GER |
Sabine Lisicki | 26 | 12 |
 AUS |
Jarmila Gajdošová | 28 | 13 |
| RUS |
Elena Vesnina | 33 | 14 |
| ITA |
Sara Errani | 36 | 15 |
| SLO |
Polona Hercog | 39 | 16 |
- Seedings are based on the rankings of July 25, 2011.
Other entrants
The following players received wildcards into the singles main draw
The following players received entry from the qualifying draw:
Gréta Arn
Jill Craybas
Marina Erakovic
Natalie Grandin
Rika Fujiwara
Marie-Ève Pelletier- Zoë Gwen Scandalis
- Ashley Weinhold
The following player received entry as a lucky loser into the singles main draw:
