# 2013 Southern California Open – Singles

Dominika Cibulková was the defending champion, but lost in the first round to Ana Ivanovic.
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 receive a bye into the second round.
* Victoria Azarenka (final)
* Agnieszka Radwańska (quarterfinals)
* Petra Kvitová (quarterfinals)
* Roberta Vinci (quarterfinals)
* Samantha Stosur (champion)
* Jelena Janković (second round)
* Ana Ivanovic (semifinals)
* Carla Suárez Navarro (second round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Victoria Azarenka | 6 | 4 | 6 | | | | |
| 7 | Ana Ivanovic | 0 | 6 | 3 | | | | |
| 7 | Ana Ivanovic | 0 | 6 | 3 | 1 | Victoria Azarenka | 2 | 3 |
| | | | | | 5/WC | Samantha Stosur | 6 | 6 |
| WC | Virginie Razzano | 6$^2$ | 3 | | 5/WC | Samantha Stosur | 6 | 6 |
| 5/WC | Samantha Stosur | 7$^7$ | 6 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | V Azarenka | 6 | 6 | | | | | | | | | | | |
| | F Pennetta | 6$^4$ | 7$^8$ | 4 | | F Schiavone | 2 | 3 | | | | | | | | | | | |
| | F Schiavone | 7$^7$ | 6$^6$ | 6 | | | | | | 1 | V Azarenka | 6 | 6 | | | | | | |
| | U Radwańska | 7$^7$ | 6 | | | | | | | | U Radwańska | 1 | 2 | | | | | | |
| Q | M Erakovic | 6$^3$ | 4 | | | U Radwańska | 6 | 4 | 6 | | | | | | | | | | |
| | M Burdette | 6 | 1 | 4 | 6 | J Janković | 2 | 6 | 3 | | | | | | | | | | |
| 6 | J Janković | 4 | 6 | 6 | | | | | | | | | | | 1 | V Azarenka | 6 | 4 | 6 |
| | | | | | | | | | | | | | | | 7 | A Ivanovic | 0 | 6 | 3 |
| | | | | | 4 | R Vinci | 6 | 6 | | | | | | | | | | | |
| | M Puig | 6 | 1 | 2 | | B Mattek-Sands | 4 | 2 | | | | | | | | | | | |
| | B Mattek-Sands | 2 | 6 | 6 | | | | | | 4 | R Vinci | 1 | 7$^7$ | 2 | | | | | |
| Q | C Vandeweghe | 6 | 6 | | | | | | | 7 | A Ivanovic | 6 | 6$^1$ | 6 | | | | | |
| WC | A Kiick | 1 | 2 | | Q | C Vandeweghe | 6$^5$ | 3 | | | | | | | | | | | |
| | D Cibulková | 6 | 3 | 2 | 7 | A Ivanovic | 7$^7$ | 6 | | | | | | | | | | | |
| 7 | A Ivanovic | 4 | 6 | 6 | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | C Suárez Navarro | 6 | 6 | | | | | | | | | | | | | | |
| Q | S Ishizu | 4 | 3 | | 8 | C Suárez Navarro | 1 | 4 | | | | | | | | | |
| | S Kuznetsova | 2 | 4 | | WC | V Razzano | 6 | 6 | | | | | | | | | |
| WC | V Razzano | 6 | 6 | | | | | | WC | V Razzano | 6$^6$ | 7 | 7$^{10}$ | | | | |
| | L Robson | 4 | 7 | 6 | | | | | 3 | P Kvitová | 7$^8$ | 5 | 6$^8$ | | | | |
| | A Morita | 6 | 5 | 2 | | L Robson | 1 | 2 | | | | | | | | | |
| | | | | | 3 | P Kvitová | 6 | 6 | | | | | | | | | |
| | | | | | | | | | | | | | | WC | V Razzano | 6$^2$ | 3 |
| 5/WC | S Stosur | 7 | 6 | | | | | | | | | | | 5/WC | S Stosur | 7$^7$ | 6 |
| | V Lepchenko | 5 | 1 | | 5/WC | S Stosur | 6 | 6 | | | | | | | | | |
| | J Görges | 3 | 5 | | Q | S Karatantcheva | 4 | 1 | | | | | | | | | |
| Q | S Karatantcheva | 6 | 7 | | | | | | 5/WC | S Stosur | 7 | 2 | 6 | | | | |
| | D Hantuchová | 6 | 6 | | | | | | 2 | A Radwańska | 5 | 6 | 3 | | | | |
| | T Paszek | 0 | 0 | | | D Hantuchová | 3 | 3 | | | | | | | | | |
| | | | | | 2 | A Radwańska | 6 | 6 | | | | | | | | | |

## Qualifying
### Seeds

* Marina Erakovic (qualified)
* Sesil Karatantcheva (qualified)
* Olga Savchuk (qualifying competition)
* Maria Elena Camerin (second round)
* Nicole Gibbs (qualifying competition)
* Sachie Ishizu (qualified)
* Petra Rampre (second round)
* Sachia Vickery (second round)

### Qualifiers

* Marina Erakovic
* Sesil Karatantcheva
* CoCo Vandeweghe
* Sachie Ishizu

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Marina Erakovic | 6 | 6 | | | | | | | | | | | |
| WC | Zoë Gwen Scandalis | 2 | 0 | | | | | | | | | | | |
| WC | Zoë Gwen Scandalis | 2 | 0 | | 1 | Marina Erakovic | 5 | 6 | 6 | | | | | |
| | | | | | WC | Jan Abaza | 7 | 1 | 1 | | | | | |
| WC | Jan Abaza | 6 | 6 | | WC | Jan Abaza | 7 | 1 | 1 | | | | | |
| WC | Emily Harman | 1 | 4 | | | | | | | | | | | |
| WC | Emily Harman | 1 | 4 | | | | | | | 1 | Marina Erakovic | 6 | 4 | 6 |
| | | | | | | | | | | 5 | Nicole Gibbs | 0 | 6 | 2 |
| | Jill Craybas | 3 | 6 | 4 | | | | | | | | | | | 5 | Nicole Gibbs | 0 | 6 | 2 |
| | Julia Boserup | 6 | 2 | 6 | | | | | | | | | | |
| | Julia Boserup | 6 | 2 | 6 | | Julia Boserup | 2 | 3 | | | | | | |
| | | | | | 5 | Nicole Gibbs | 6 | 6 | | | | | | |
| WC | Brianna Morgan | 2 | 0 | | 5 | Nicole Gibbs | 6 | 6 | | | | | | |
| 5 | Nicole Gibbs | 6 | 6 | | | | | | | | | | | |

#### Second qualifier

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Sesil Karatantcheva | 6 | 6 | | | | | | | | | | |
| | Chieh-yu Hsu | 1 | 2 | | | | | | | | | | |
| | Chieh-yu Hsu | 1 | 2 | 2 | Sesil Karatantcheva | 3 | 6 | 6 | | | | | |
| | | | | | Katalin Marosi | 6 | 4 | 2 | | | | | |
| | Katalin Marosi | 6 | 6 | | Katalin Marosi | 6 | 4 | 2 | | | | | |
| WC | Julia Moriarty | 3 | 2 | | | | | | | | | | |
| WC | Julia Moriarty | 3 | 2 | | | | | | 2 | Sesil Karatantcheva | 6$^6$ | 6 | 6 |
| | | | | | | | | | | Ivana Lisjak | 7$^8$ | 3 | 1 |
| | Ivana Lisjak | w/o | | | | | | | | | | | | Ivana Lisjak | 7$^8$ | 3 | 1 |
| | Abigail Spears | | | | | | | | | | | | |
| | Abigail Spears | | | | Ivana Lisjak | 6 | 4 | 6 | | | | | |
| | | | | 8 | Sachia Vickery | 2 | 6 | 3 | | | | | |
| | Natalie Grandin | 1 | 3 | 8 | Sachia Vickery | 2 | 6 | 3 | | | | | |
| 8 | Sachia Vickery | 6 | 6 | | | | | | | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Olga Savchuk | 6 | 6 | | | | | | | | | |
| WC | Zhang Xue | 0 | 0 | | | | | | | | | |
| WC | Zhang Xue | 0 | 0 | | 3 | Olga Savchuk | 6 | 6 | | | | |
| | | | | | WC | Allie Will | 1 | 0 | | | | |
| WC | Kelly Shaffer | 2 | 1 | | WC | Allie Will | 1 | 0 | | | | |
| WC | Allie Will | 6 | 6 | | | | | | | | | |
| WC | Allie Will | 6 | 6 | | | | | | 3 | Olga Savchuk | 6$^3$ | 3 |
| | | | | | | | | | | CoCo Vandeweghe | 7$^7$ | 6 |
| | CoCo Vandeweghe | 6 | 6 | | | | | | | | | | CoCo Vandeweghe | 7$^7$ | 6 |
| WC | Stephanie Hoffpauir | 2 | 3 | | | | | | | | | |
| WC | Stephanie Hoffpauir | 2 | 3 | | | CoCo Vandeweghe | 6 | 6 | | | | |
| | | | | | 7 | Petra Rampre | 4 | 4 | | | | |
| WC | Amanda Fink | 4 | 6 | 2 | 7 | Petra Rampre | 4 | 4 | | | | |
| 7 | Petra Rampre | 6 | 3 | 6 | | | | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Maria Elena Camerin | 6 | 6 | | | | | | | | |
| WC | Elizabeth Lumpkin | 3 | 4 | | | | | | | | |
| WC | Elizabeth Lumpkin | 3 | 4 | 4 | Maria Elena Camerin | 4 | 6 | 6$^8$ | | | |
| | | | | WC | Alexandra Stevenson | 6 | 2 | 7$^{10}$ | | | |
| WC | Alexandra Stevenson | 6 | 6 | WC | Alexandra Stevenson | 6 | 2 | 7$^{10}$ | | | |
| WC | Gabrielle DeSimone | 3 | 2 | | | | | | | | |
| WC | Gabrielle DeSimone | 3 | 2 | | | | | | WC | Alexandra Stevenson | |
| | | | | | | | | | 6 | Sachie Ishizu | w/o |
| | Alicja Rosolska | 2 | 2 | | | | | | | | | 6 | Sachie Ishizu | w/o |
| | Asia Muhammad | 6 | 6 | | | | | | | | |
| | Asia Muhammad | 6 | 6 | | Asia Muhammad | 6 | 4 | 5 | | | |
| | | | | 6 | Sachie Ishizu | 4 | 6 | 7 | | | |
| | Raquel Kops-Jones | | | 6 | Sachie Ishizu | 4 | 6 | 7 | | | |
| 6 | Sachie Ishizu | w/o | | | | | | | | | |