# 2011 Toray Pan Pacific Open – Singles

Agnieszka Radwańska defeated Vera Zvonareva in the final, 6–3, 6–2 to win the singles tennis title at the 2011 Pan Pacific Open.
Caroline Wozniacki was the defending champion, but lost to Kaia Kanepi in the third round.

## Seeds

The top eight seeds received a bye into the second round.
* Caroline Wozniacki (third round)
* Maria Sharapova (quarterfinals, retired due to a left ankle injury)
* Victoria Azarenka (semifinals)
* Vera Zvonareva (final)
* Petra Kvitová (semifinals)
* Samantha Stosur (second round)
* Marion Bartoli (quarterfinals)
* Jelena Janković (third round)
* Agnieszka Radwańska (champion)
* Peng Shuai (third round)
* Anastasia Pavlyuchenkova (second round)
* Ana Ivanovic (third round)
* Julia Görges (third round)
* Dominika Cibulková (second round)
* Flavia Pennetta (first round)
* Shahar Pe'er (second round)

## Main 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| | Kaia Kanepi | 2 | 6$^7$ | | | | | | | | | |
| 9 | Agnieszka Radwańska | 6 | 7$^9$ | | | | | | | | | |
| 9 | Agnieszka Radwańska | 6 | 7$^9$ | 9 | Agnieszka Radwańska | 6 | 4 | 6 | | | | |
| | | | | 3 | Victoria Azarenka | 3 | 6 | 2 | | | | |
| 3 | Victoria Azarenka | 7 | 6 | 3 | Victoria Azarenka | 3 | 6 | 2 | | | | |
| 7 | Marion Bartoli | 5 | 0 | | | | | | | | | |
| 7 | Marion Bartoli | 5 | 0 | | | | | | 9 | Agnieszka Radwańska | 6 | 6 |
| | | | | | | | | | 4 | Vera Zvonareva | 3 | 2 |
| | Maria Kirilenko | 3 | 3 | | | | | | | | | | 4 | Vera Zvonareva | 3 | 2 |
| 4 | Vera Zvonareva | 6 | 6 | | | | | | | | | |
| 4 | Vera Zvonareva | 6 | 6 | 4 | Vera Zvonareva | 7$^7$ | 6 | | | | | |
| | | | | 5 | Petra Kvitová | 6$^2$ | 0 | | | | | |
| 5 | Petra Kvitová | 4 | | 5 | Petra Kvitová | 6$^2$ | 0 | | | | | |
| 2 | Maria Sharapova | 3$^r$ | | | | | | | | | | |

### 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 | C Wozniacki | 6 | 6$^4$ | 6 | | | | | | | | | |
| | R Marino | 6 | 2 | 5 | | J Gajdošová | 1 | 7$^7$ | 3 | | | | | | | | | |
| | J Gajdošová | 1 | 6 | 7 | | | | | | 1 | C Wozniacki | 5 | 6 | 4 | | | | |
| Q | C Vandeweghe | 7$^7$ | 4 | 6 | | | | | | | K Kanepi | 7 | 1 | 6 | | | | |
| | J Zheng | 6$^4$ | 6 | 2 | Q | C Vandeweghe | 2 | 2 | | | | | | | | | | |
| | K Kanepi | 3 | 6 | 6 | | K Kanepi | 6 | 6 | | | | | | | | | | |
| 15 | F Pennetta | 6 | 4 | 4 | | | | | | | | | | | | K Kanepi | 2 | 6$^7$ |
| 9 | A Radwańska | 6 | 6 | | | | | | | | | | | | 9 | A Radwańska | 6 | 7$^9$ |
| WC | M Doi | 1 | 1 | | 9 | A Radwańska | 3 | 6 | 6 | | | | | | | | | |
| Q | A Kerber | 6 | 6 | | Q | A Kerber | 6 | 3 | 3 | | | | | | | | | |
| | B Jovanovski | 1 | 0 | | | | | | | 9 | A Radwańska | 2 | 6 | 6 | | | | |
| | B Záhlavová-Strýcová | 7$^7$ | 4 | | | | | | | 8 | J Janković | 6 | 4 | 0 | | | | |
| | A Sevastova | 6$^2$ | 1 | r | | B Záhlavová-Strýcová | 4 | 2 | | | | | | | | | | |
| | | | | | 8 | J Janković | 6 | 6 | | | | | | | | | | |

#### 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 |
| | | | | | 3 | V Azarenka | 6 | 6 | | | | | | | | | |
| | I-C Begu | 1 | 6 | 6 | | I-C Begu | 1 | 3 | | | | | | | | | |
| Q | Ka Plíšková | 6 | 3 | 4 | | | | | | 3 | V Azarenka | 6 | 7 | | | | |
| Q | U Radwańska | 6 | 3 | 1 | | | | | | | K Zakopalová | 3 | 5 | | | | |
| | K Zakopalová | 3 | 6 | 6 | | K Zakopalová | 6 | 6 | | | | | | | | | |
| WC | Kr Plíšková | 6 | 5 | 1 | 16 | S Pe'er | 3 | 1 | | | | | | | | | |
| 16 | S Pe'er | 4 | 7 | 6 | | | | | | | | | | 3 | V Azarenka | 7 | 6 |
| 10 | S Peng | 6 | 6 | | | | | | | | | | | 7 | M Bartoli | 5 | 0 |
| Q | J Craybas | 2 | 0 | | 10 | S Peng | 6 | 6 | | | | | | | | | |
| | C McHale | 7$^7$ | 6 | | | C McHale | 0 | 3 | | | | | | | | | |
| | T Paszek | 6$^1$ | 3 | | | | | | | 10 | S Peng | 2 | 1 | | | | |
| | I Falconi | 5 | 1 | | | | | | | 7 | M Bartoli | 6 | 6 | | | | |
| | A Morita | 7 | 6 | | | A Morita | 3 | 6 | 3 | | | | | | | | |
| | | | | | 7 | M Bartoli | 6 | 0 | 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 | S Stosur | 2 | 6 | 4 | | | | | | | | |
| Q | E Sema | 1 | 0 | | | M Kirilenko | 6 | 4 | 6 | | | | | | | | |
| | M Kirilenko | 6 | 6 | | | | | | | | M Kirilenko | 6 | 6 | | | | |
| WC | L Robson | 6 | 6 | | | | | | | 12 | A Ivanovic | 3 | 1 | | | | |
| | A Dulgheru | 2 | 2 | | WC | L Robson | 5 | 4 | | | | | | | | | |
| Q | A Rodionova | 4 | 0 | | 12 | A Ivanovic | 7 | 6 | | | | | | | | | |
| 12 | A Ivanovic | 6 | 6 | | | | | | | | | | | | M Kirilenko | 3 | 3 |
| 14 | D Cibulková | 2 | 6 | 6 | | | | | | | | | | 4 | V Zvonareva | 6 | 6 |
| | M Rybáriková | 6 | 3 | 0 | 14 | D Cibulková | 4 | 2 | | | | | | | | | |
| | I Benešová | 6 | 6 | | | I Benešová | 6 | 6 | | | | | | | | | |
| | A Yakimova | 2 | 4 | | | | | | | | I Benešová | 1 | 2 | | | | |
| | G Dulko | 6$^2$ | 1 | | | | | | | 4 | V Zvonareva | 6 | 6 | | | | |
| | T Pironkova | 7$^7$ | 6 | | | T Pironkova | 5 | 0 | | | | | | | | | |
| | | | | | 4 | V Zvonareva | 7 | 6 | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 5 | P Kvitová | 6 | 6 | | | | | | | | |
| Q | M Minella | 1 | 6 | 6 | Q | M Minella | 2 | 3 | | | | | | | | |
| | K Date-Krumm | 6 | 3 | 3 | | | | | 5 | P Kvitová | 6 | 7$^7$ | | | | |
| | V King | 6 | 6 | | | | | | | V King | 1 | 6$^4$ | | | | |
| | S Zhang | 1 | 0 | | | V King | 6 | 7$^8$ | | | | | | | | |
| | A Rus | 4 | 3 | | 11 | A Pavlyuchenkova | 4 | 6$^6$ | | | | | | | | |
| 11 | A Pavlyuchenkova | 6 | 6 | | | | | | | | | | 5 | P Kvitová | 4 | |
| 13 | J Görges | 6 | 6 | | | | | | | | | | 2 | M Sharapova | 3 | r |
| | P Parmentier | 3 | 4 | | 13 | J Görges | 6 | 6 | | | | | | | | |
| | G Arn | 7 | 6 | | | G Arn | 2 | 1 | | | | | | | | |
| | S Arvidsson | 5 | 3 | | | | | | 13 | J Görges | 6$^4$ | 6$^4$ | | | | |
| | T Tanasugarn | 6 | 6 | | | | | | 2 | M Sharapova | 7$^7$ | 7$^7$ | | | | |
| | P Cetkovská | 4 | 4 | | | T Tanasugarn | 2 | 5 | | | | | | | | |
| | | | | | 2 | M Sharapova | 6 | 7 | | | | | | | | |