# 2011 New Haven Open at Yale – Singles

World No. 1 Caroline Wozniacki was the three-time defending champion and successfully defended her title, beating qualifier Petra Cetkovská 6–4, 6–1 in the final.

## Seeds

The top two seeds received a bye into the second round.
* Caroline Wozniacki (champion)
* Li Na (semifinals)
* Francesca Schiavone (semifinals)
* Marion Bartoli (quarterfinals)
* Agnieszka Radwańska (second round)
* Svetlana Kuznetsova (first round)
* Jelena Janković (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

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Caroline Wozniacki | 7$^7$ | 6 | | | | | |
| 3 | Francesca Schiavone | 6$^2$ | 3 | | | | | |
| 3 | Francesca Schiavone | 6$^2$ | 3 | | 1 | Caroline Wozniacki | 6 | 6 |
| | | | | | Q | Petra Cetkovská | 4 | 1 |
| Q | Petra Cetkovská | 6 | 5 | 7$^{11}$ | Q | Petra Cetkovská | 4 | 1 |
| 2/WC | Li Na | 2 | 7 | 6$^9$ | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | C Wozniacki | 6 | 6 | | | | | | | | |
| | P Hercog | 7 | 7 | | | P Hercog | 3 | 0 | | | | | | | | |
| | N Petrova | 5 | 5 | | | | | | 1 | C Wozniacki | 7 | 6 | | | | |
| | I Benešová | 3 | 2 | | | | | | WC | C McHale | 5 | 3 | | | | |
| LL | C Suárez Navarro | 6 | 6 | | LL | C Suárez Navarro | 2 | 2 | | | | | | | | |
| WC | C McHale | 7 | 6 | | WC | C McHale | 6 | 6 | | | | | | | | |
| 6 | S Kuznetsova | 5 | 3 | | | | | | | | | | 1 | C Wozniacki | 7$^7$ | 6 |
| 3 | F Schiavone | 6 | 6 | | | | | | | | | | 3 | F Schiavone | 6$^2$ | 3 |
| | A Dulgheru | 1 | 2 | | 3 | F Schiavone | 6 | 6 | | | | | | | | |
| | M Niculescu | 6 | 6 | | | M Niculescu | 2 | 1 | | | | | | | | |
| | T Pironkova | 3 | 2 | | | | | | 3 | F Schiavone | w/o | | | | | |
| | A Medina Garrigues | 6 | 7$^7$ | | | | | | | A Medina Garrigues | | | | | | |
| Q | K Pervak | 2 | 6$^5$ | | | A Medina Garrigues | 6 | 7$^7$ | | | | | | | | |
| | E Vesnina | 6 | 2 | 6 | | E Vesnina | 2 | 6$^5$ | | | | | | | | |
| 7/WC | J Janković | 4 | 6 | 4 | | | | | | | | | | | | |

### Bottom 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 |
| 5 | A Radwańska | 6 | 6 | | | | | | | | | | | | | | | | |
| | E Makarova | 1 | 2 | | 5 | A Radwańska | 4 | 7 | 3 | | | | | | | | | | |
| | A Morita | 2 | 2 | | Q | P Cetkovská | 6 | 5 | 6 | | | | | | | | | | |
| Q | P Cetkovská | 6 | 6 | | | | | | | Q | P Cetkovská | 7 | 7 | | | | | | |
| | K Zakopalová | 7 | 6 | | | | | | | 4/WC | M Bartoli | 5 | 5 | | | | | | |
| | F Pennetta | 5 | 2 | | | K Zakopalová | 2 | 6 | 1 | | | | | | | | | | |
| Q | A Rodionova | 1 | 4 | | 4/WC | M Bartoli | 6 | 2 | 6 | | | | | | | | | | |
| 4/WC | M Bartoli | 6 | 6 | | | | | | | | | | | | Q | P Cetkovská | 6 | 5 | 7$^{11}$ |
| 8 | A Pavlyuchenkova | 3 | 6 | 6 | | | | | | | | | | | 2/WC | N Li | 2 | 7 | 6$^9$ |
| Q | V Dushevina | 6 | 4 | 3 | 8 | A Pavlyuchenkova | 6 | 6 | | | | | | | | | | | |
| | L Hradecká | 6 | 3 | 3 | | R Vinci | 2 | 4 | | | | | | | | | | | |
| | R Vinci | 3 | 6 | 6 | | | | | | 8 | A Pavlyuchenkova | 4 | 6 | 2 | | | | | |
| | S Errani | 5 | 5 | | | | | | | 2/WC | N Li | 6 | 3 | 6 | | | | | |
| | M Kirilenko | 7 | 7 | | | M Kirilenko | 4 | 6$^4$ | | | | | | | | | | | |
| | | | | | 2/WC | N Li | 6 | 7$^7$ | | | | | | | | | | | |