# 2012 Western & Southern Open – Women's singles

Li Na defeated Angelique Kerber in the final, 1–6, 6–3, 6–1 to win the women's singles tennis title at the 2012 Cincinnati Masters.
Maria Sharapova was the reigning champion, but withdrew because of a stomach virus.

## Seeds

The top eight seeds and the Montreal finalists receive a bye into the second round.
* Agnieszka Radwańska (quarterfinals)
* Serena Williams (quarterfinals)
* Samantha Stosur (quarterfinals)
* Petra Kvitová (semifinals)
* Angelique Kerber (final)
* Caroline Wozniacki (third round)
* Sara Errani (third round)
* Marion Bartoli (second round)
* Li Na (champion)
* Ana Ivanovic (withdrew because of a right foot injury)
* Dominika Cibulková (second round, retired)
* Maria Kirilenko (first round)
* Jelena Janković (first round)
* Francesca Schiavone (first round)
* Nadia Petrova (first round, retired because of dizziness)
* Lucie Šafářová (first round)
* Anastasia Pavlyuchenkova (quarterfinals)

## 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

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 1 | Agnieszka Radwańska | 1 | 1 | | | | | | | | | | | |
| 9 | Li Na | 6 | 6 | | | | | | | | | | | |
| 9 | Li Na | 6 | 6 | | 9 | Li Na | 7 | 3 | 6 | | | | | |
| | | | | | WC | Venus Williams | 5 | 6 | 1 | | | | | |
| 3 | Samantha Stosur | 2 | 7$^7$ | 4 | WC | Venus Williams | 5 | 6 | 1 | | | | | |
| WC | Venus Williams | 6 | 6$^2$ | 6 | | | | | | | | | | |
| WC | Venus Williams | 6 | 6$^2$ | 6 | | | | | | 9 | Li Na | 1 | 6 | 6 |
| | | | | | | | | | | 5 | Angelique Kerber | 6 | 3 | 1 |
| 17 | Anastasia Pavlyuchenkova | 3 | 6$^4$ | | | | | | | | | | | | 5 | Angelique Kerber | 6 | 3 | 1 |
| 4 | Petra Kvitová | 6 | 7$^7$ | | | | | | | | | | | |
| 4 | Petra Kvitová | 6 | 7$^7$ | | 4 | Petra Kvitová | 1 | 6 | 4 | | | | | |
| | | | | | 5 | Angelique Kerber | 6 | 2 | 6 | | | | | |
| 5 | Angelique Kerber | 6 | 6 | | 5 | Angelique Kerber | 6 | 2 | 6 | | | | | |
| 2 | Serena Williams | 4 | 4 | | | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 1 | A Radwańska | 6 | 6 | | | | | | | | | | |
| | S Arvidsson | 6 | 2 | | | S Arvidsson | 4 | 3 | | | | | | | | | | |
| | T Paszek | 1 | 1$^r$ | | | | | | | 1 | A Radwańska | 6 | 4 | 6 | | | | |
| | T Pironkova | 4 | 1 | | | | | | | WC | S Stephens | 1 | 6 | 4 | | | | |
| WC | S Stephens | 6 | 6 | | WC | S Stephens | 6 | 6 | | | | | | | | | | |
| WC | C Giorgi | 6 | 6 | | WC | C Giorgi | 2 | 1 | | | | | | | | | | |
| 14 | F Schiavone | 1 | 3 | | | | | | | | | | | | 1 | A Radwańska | 1 | 1 |
| | | | | | | | | | | | | | | | 9 | N Li | 6 | 6 |
| | | | | | 9 | N Li | 6 | 4 | 6 | | | | | | | | | |
| | Y Wickmayer | 7$^8$ | 2 | 3 | | S Cîrstea | 3 | 6 | 3 | | | | | | | | | |
| | S Cîrstea | 6$^6$ | 6 | 6 | | | | | | 9 | N Li | 6 | 6 | | | | | |
| Q | J Larsson | 6 | 6 | | | | | | | Q | J Larsson | 2 | 2 | | | | | |
| Q | C Dellacqua | 1 | 3 | | Q | J Larsson | 6 | 6 | | | | | | | | | | |
| | | | | | 8 | M Bartoli | 4 | 2 | | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 3 | S Stosur | 6 | 6$^6$ | 6 | | | | | | | | | |
| | S Halep | 3 | 0 | | | A Medina Garrigues | 3 | 7$^8$ | 4 | | | | | | | | | |
| | A Medina Garrigues | 6 | 6 | | | | | | | 3 | S Stosur | 6 | 6 | | | | | |
| | K Zakopalová | 6$^5$ | 5 | | | | | | | | E Makarova | 1 | 3 | | | | | |
| LL | A Tatishvili | 7$^7$ | 7 | | LL | A Tatishvili | 1 | 2 | | | | | | | | | | |
| | E Makarova | 7$^{10}$ | 3 | | | E Makarova | 6 | 6 | | | | | | | | | | |
| 15 | N Petrova | 6$^8$ | 1$^r$ | | | | | | | | | | | 3 | S Stosur | 2 | 7$^7$ | 4 |
| 12 | M Kirilenko | 3 | 7$^7$ | 2 | | | | | | | | | | WC | V Williams | 6 | 6$^2$ | 6 |
| WC | V Williams | 6 | 6$^5$ | 6 | WC | V Williams | 2 | 6 | 6 | | | | | | | | | |
| | C Scheepers | 3 | 6 | 3 | | C Scheepers | 6 | 3 | 2 | | | | | | | | | |
| | C McHale | 6 | 3 | 0$^r$ | | | | | | WC | V Williams | 6 | 6 | | | | | |
| | J Zheng | 6 | 6$^1$ | 3 | | | | | | 7 | S Errani | 3 | 0 | | | | | |
| | D Hantuchová | 2 | 7$^7$ | 6 | | D Hantuchová | 4 | 4 | | | | | | | | | | |
| | | | | | 7 | S Errani | 6 | 6 | | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 6 | C Wozniacki | 6 | 6 | | | | | | | | | |
| Q | S Karatantcheva | 6 | 6 | | Q | S Karatantcheva | 1 | 0 | | | | | | | | | |
| Q | K Bertens | 2 | 1 | | | | | | | 6 | C Wozniacki | 4 | 4 | | | | |
| | S Pe'er | 3 | 3 | | | | | | | 17 | A Pavlyuchenkova | 6 | 6 | | | | |
| | J Görges | 6 | 6 | | | J Görges | 3 | 0 | | | | | | | | | |
| | C Suárez Navarro | 4 | 0 | | 17 | A Pavlyuchenkova | 6 | 6 | | | | | | | | | |
| 17 | A Pavlyuchenkova | 6 | 6 | | | | | | | | | | | 17 | A Pavlyuchenkova | 3 | 6$^4$ |
| 13 | J Janković | 7 | 5 | 6$^8$ | | | | | | | | | | 4 | P Kvitová | 6 | 7$^7$ |
| | S Peng | 5 | 7 | 7$^{10}$ | | S Peng | 6 | 6 | | | | | | | | | |
| | R Vinci | 6 | 6 | | | R Vinci | 3 | 4 | | | | | | | | | |
| Q | M Keys | 3 | 3 | | | | | | | | S Peng | 2 | 2 | | | | |
| | MJ Martínez Sánchez | 0 | 4 | | | | | | | 4 | P Kvitová | 6 | 6 | | | | |
| | M Barthel | 6 | 6 | | | M Barthel | 6 | 2 | 5 | | | | | | | | |
| | | | | | 4 | P Kvitová | 3 | 6 | 7 | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 5 | A Kerber | 3 | 6 | 6 | | | | | | | | |
| | V Lepchenko | 6$^4$ | 4 | | LL | T Babos | 6 | 1 | 2 | | | | | | | | |
| LL | T Babos | 7$^7$ | 6 | | | | | | | 5 | A Kerber | 6 | 7$^7$ | | | | |
| Q | B Mattek-Sands | 3 | 5 | | | | | | | Q | A Hlaváčková | 4 | 6$^5$ | | | | |
| Q | A Hlaváčková | 6 | 7 | | Q | A Hlaváčková | 7$^7$ | 4 | | | | | | | | | |
| Q | A Amanmuradova | 3 | 4 | | 11 | D Cibulková | 6$^1$ | 1$^r$ | | | | | | | | | |
| 11 | D Cibulková | 6 | 6 | | | | | | | | | | | 5 | A Kerber | 6 | 6 |
| 16 | L Šafářová | 3 | 4 | | | | | | | | | | | 2 | S Williams | 4 | 4 |
| Q | Y Shvedova | 6 | 6 | | Q | Y Shvedova | 6 | 1$^r$ | | | | | | | | | |
| | K Pervak | 2 | 4 | | Q | U Radwańska | 4 | 4 | | | | | | | | | |
| Q | U Radwańska | 6 | 6 | | | | | | | Q | U Radwańska | 4 | 3 | | | | |
| Q | V King | 3 | 6 | 6$^6$ | | | | | | 2 | S Williams | 6 | 6 | | | | |
| Q | E Daniilidou | 6 | 2 | 7$^8$ | Q | E Daniilidou | 3 | 4 | | | | | | | | | |
| | | | | | 2 | S Williams | 6 | 6 | | | | | | | | | |

## Qualifying draw
### Seeds

* Yaroslava Shvedova (qualified)
* Urszula Radwańska (qualified)
* Vania King (qualified)
* Galina Voskoboeva (withdrew)
* Iveta Benešová (first round)
* Sílvia Soler Espinosa (first round)
* Arantxa Rus (first round)
* Tímea Babos (qualifying competition, lucky loser)
* Lucie Hradecká (first round)
* Bojana Jovanovski (first round)
* CoCo Vandeweghe (first round)
* Lourdes Domínguez Lino (first round)
* Anne Keothavong (first round)
* Anna Tatishvili (qualifying competition, lucky loser)
* Kiki Bertens (qualified)
* Olga Govortsova (qualifying competition)
* Irina-Camelia Begu (qualifying competition)
* Melinda Czink (qualifying competition)
* Laura Robson (qualifying competition)
* Andrea Hlaváčková (qualified)
* Pauline Parmentier (first round)
* Johanna Larsson (qualified)
* Kateryna Bondarenko (qualifying competition)
* Garbiñe Muguruza (first round)

### Qualifiers

* Yaroslava Shvedova
* Urszula Radwańska
* Vania King
* Akgul Amanmuradova
* Johanna Larsson
* Kiki Bertens
* Sesil Karatantcheva
* Madison Keys
* Casey Dellacqua
* Andrea Hlaváčková
* Eleni Daniilidou
* Bethanie Mattek-Sands

### Lucky losers

* Tímea Babos
* Anna Tatishvili

### Draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Yaroslava Shvedova | 6 | 6 | | | | |
| WC | Lauren Davis | 3 | 2 | | | | |
| WC | Lauren Davis | 3 | 2 | 1 | Yaroslava Shvedova | 7 | 6 |
| | | | | 14 | Anna Tatishvili | 5 | 2 |
| WC | Nicole Gibbs | 2 | 6$^8$ | 14 | Anna Tatishvili | 5 | 2 |
| 14 | Anna Tatishvili | 6 | 7$^{10}$ | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Urszula Radwańska | 6 | 6 | | | | | |
| | Mirjana Lučić | 2 | 2 | | | | | |
| | Mirjana Lučić | 2 | 2 | | 2 | Urszula Radwańska | 6 | 6 |
| | | | | | 19 | Laura Robson | 3 | 2 |
| | Vera Dushevina | 2 | 6 | 4 | 19 | Laura Robson | 3 | 2 |
| 19 | Laura Robson | 6 | 3 | 6 | | | | |

#### Third qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Vania King | 6 | 6 | | | | | |
| | Kimiko Date-Krumm | 4 | 4 | | | | | |
| | Kimiko Date-Krumm | 4 | 4 | 3 | Vania King | 3 | 6 | 7 |
| | | | | 17 | Irina-Camelia Begu | 6 | 3 | 5 |
| | Julia Cohen | 4 | 2 | 17 | Irina-Camelia Begu | 6 | 3 | 5 |
| 17 | Irina-Camelia Begu | 6 | 6 | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition |
| Alt | Jana Čepelová | 3 | 1 | | | |
| | Karolína Plíšková | 6 | 6 | | | |
| | Karolína Plíšková | 6 | 6 | Karolína Plíšková | 3 | 2 |
| | | | | Akgul Amanmuradova | 6 | 6 |
| | Akgul Amanmuradova | 6 | 6 | Akgul Amanmuradova | 6 | 6 |
| 21 | Pauline Parmentier | 4 | 3 | | | |

#### Fifth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 5 | Iveta Benešová | 1 | 7$^7$ | 3 | | | | |
| | Alexa Glatch | 6 | 6$^2$ | 6 | | | | |
| | Alexa Glatch | 6 | 6$^2$ | 6 | | Alexa Glatch | 2 | 2 |
| | | | | | 22 | Johanna Larsson | 6 | 6 |
| WC | Komal Safdar | 1 | 1 | | 22 | Johanna Larsson | 6 | 6 |
| 22 | Johanna Larsson | 6 | 6 | | | | | |

#### Sixth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 6 | Sílvia Soler Espinosa | 3 | 5 | | | | | |
| | Yulia Putintseva | 6 | 7 | | | | | |
| | Yulia Putintseva | 6 | 7 | | | Yulia Putintseva | 3 | 3 |
| | | | | | 15 | Kiki Bertens | 6 | 6 |
| | Aravane Rezaï | 3 | 7$^7$ | 4 | 15 | Kiki Bertens | 6 | 6 |
| 15 | Kiki Bertens | 6 | 6$^3$ | 6 | | | | |

#### Seventh qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 7 | Arantxa Rus | 6 | 5 | 0 | | | | | |
| | Sesil Karatantcheva | 3 | 7 | 6 | | | | | |
| | Sesil Karatantcheva | 3 | 7 | 6 | | Sesil Karatantcheva | 3 | 7 | 6 |
| | | | | | 16 | Olga Govortsova | 6 | 5 | 0 |
| WC | Jill Craybas | 3 | 2 | | 16 | Olga Govortsova | 6 | 5 | 0 |
| 16 | Olga Govortsova | 6 | 6 | | | | | | |

#### Eighth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 8 | Tímea Babos | 6 | 6 | | | | | |
| | Lesia Tsurenko | 2 | 4 | | | | | |
| | Lesia Tsurenko | 2 | 4 | | 8 | Tímea Babos | 3 | 0 |
| | | | | | WC | Madison Keys | 6 | 6 |
| WC | Madison Keys | 7$^7$ | 3 | 6 | WC | Madison Keys | 6 | 6 |
| 24 | Garbiñe Muguruza | 6$^5$ | 6 | 1 | | | | |

#### Ninth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 9 | Lucie Hradecká | 3 | 1 | | | | |
| | Casey Dellacqua | 6 | 6 | | | | |
| | Casey Dellacqua | 6 | 6 | | Casey Dellacqua | 6 | 7$^7$ |
| | | | | 18 | Melinda Czink | 4 | 6$^2$ |
| | Melanie Oudin | 3 | 4 | 18 | Melinda Czink | 4 | 6$^2$ |
| 18 | Melinda Czink | 6 | 6 | | | | |

#### Tenth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 10 | Bojana Jovanovski | 3 | 6 | 6$^2$ | | | | | |
| | Olivia Rogowska | 6 | 2 | 7$^7$ | | | | | |
| | Olivia Rogowska | 6 | 2 | 7$^7$ | | Olivia Rogowska | 7$^7$ | 4 | 4 |
| | | | | | 20 | Andrea Hlaváčková | 6$^5$ | 6 | 6 |
| | Jarmila Gajdošová | 3 | 6$^4$ | | 20 | Andrea Hlaváčková | 6$^5$ | 6 | 6 |
| 20 | Andrea Hlaváčková | 6 | 7$^7$ | | | | | | |

#### Eleventh qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 11 | CoCo Vandeweghe | 3 | 6$^2$ | | | | |
| | Eleni Daniilidou | 6 | 7$^7$ | | | | |
| | Eleni Daniilidou | 6 | 7$^7$ | | Eleni Daniilidou | 6 | 7$^7$ |
| | | | | 23 | Kateryna Bondarenko | 3 | 6$^2$ |
| | Chang Kai-chen | 5 | 4 | 23 | Kateryna Bondarenko | 3 | 6$^2$ |
| 23 | Kateryna Bondarenko | 7 | 6 | | | | |

#### Twelfth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 12 | Lourdes Domínguez Lino | 3 | 3 | | | | | | |
| WC | Bethanie Mattek-Sands | 6 | 6 | | | | | | |
| WC | Bethanie Mattek-Sands | 6 | 6 | | WC | Bethanie Mattek-Sands | 1 | 7 | 6 |
| | | | | | | Chan Yung-jan | 6 | 5 | 3 |
| | Chan Yung-jan | 6 | 4 | 6 | | Chan Yung-jan | 6 | 5 | 3 |
| 13 | Anne Keothavong | 3 | 6 | 0 | | | | | |