# 2011 US Open – Women's singles

Samantha Stosur defeated Serena Williams in the final, 6–2, 6–3 to win the women's singles tennis title at the 2011 US Open. It was her first and only major singles title. Stosur was the first Australian woman to win a major since Evonne Goolagong Cawley at the 1980 Wimbledon Championships, and the first to win the US Open since Margaret Court in 1973.
Kim Clijsters was the two-time reigning champion, but withdrew due to an abdominal injury.
This was the first time in the tournament's history where no Americans were among the top ten seeds.
This tournament marked the first major appearance of future Australian Open champion Madison Keys, who was awarded a wildcard; she lost to Lucie Šafářová in the second round.

## Seeds

    01. Caroline Wozniacki (semifinals)
    02. Vera Zvonareva (quarterfinals)
    03. Maria Sharapova (third round)
    04. Victoria Azarenka (third round)
    05. Petra Kvitová (first round)
    06. Li Na (first round)
    07. Francesca Schiavone (fourth round)
    08. Marion Bartoli (second round)
    09. Samantha Stosur (champion)
    10. Andrea Petkovic (quarterfinals)
    11. Jelena Janković (third round)
    12. Agnieszka Radwańska (second round)
    13. Peng Shuai (fourth round)
    14. Dominika Cibulková (second round)
    15. Svetlana Kuznetsova (fourth round)
    16. Ana Ivanovic (fourth round)
    17. Anastasia Pavlyuchenkova (quarterfinals)
    18. Roberta Vinci (third round)
    19. Julia Görges (third round)
    20. Yanina Wickmayer (second round, retired because of a back injury)
    21. Daniela Hantuchová (first round)
    22. Sabine Lisicki (fourth round)
    23. Shahar Pe'er (second round)
    24. Nadia Petrova (third round)
    25. Maria Kirilenko (fourth round)
    26. Flavia Pennetta (quarterfinals)
    27. Lucie Šafářová (third round)
    28. Serena Williams (final)
    29. Jarmila Gajdošová (second round)
    30. Anabel Medina Garrigues (third round)
    31. Kaia Kanepi (second round)
    32. María José Martínez Sánchez (first 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Caroline Wozniacki | 6 | 7$^7$ | | | | | | | | | | |
| 10 | Andrea Petkovic | 1 | 6$^5$ | | | | | | | | | | |
| 10 | Andrea Petkovic | 1 | 6$^5$ | | 1 | Caroline Wozniacki | 2 | 4 | | | | | |
| | | | | | 28/PR | Serena Williams | 6 | 6 | | | | | |
| 28/PR | Serena Williams | 7 | 6 | | 28/PR | Serena Williams | 6 | 6 | | | | | |
| 17 | Anastasia Pavlyuchenkova | 5 | 1 | | | | | | | | | | |
| 17 | Anastasia Pavlyuchenkova | 5 | 1 | | | | | | | 28/PR | Serena Williams | 2 | 3 |
| | | | | | | | | | | 9 | Samantha Stosur | 6 | 6 |
| | Angelique Kerber | 6 | 4 | 6 | | | | | | | | | | 9 | Samantha Stosur | 6 | 6 |
| 26 | Flavia Pennetta | 4 | 6 | 3 | | | | | | | | | |
| 26 | Flavia Pennetta | 4 | 6 | 3 | | Angelique Kerber | 3 | 6 | 2 | | | | |
| | | | | | 9 | Samantha Stosur | 6 | 2 | 6 | | | | |
| 9 | Samantha Stosur | 6 | 6 | | 9 | Samantha Stosur | 6 | 2 | 6 | | | | |
| 2 | Vera Zvonareva | 3 | 3 | | | | | | | | | | |

### Top half
#### Section 1

| 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 | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| 1 | C Wozniacki | 6 | 6 | | | | | | | | | | | | | | |
| | N Llagostera Vives | 3 | 1 | | 1 | C Wozniacki | 6 | 6 | | | | | | | | | |
| | A Rus | 6 | 6 | | | A Rus | 2 | 0 | | | | | | | | | |
| | E Vesnina | 2 | 4 | | | | | | 1 | C Wozniacki | 6 | 6 | | | | | |
| | V King | 6 | 6 | | | | | | | V King | 2 | 4 | | | | | |
| | G Arn | 1 | 4 | | | V King | 6 | 6 | | | | | | | | | |
| | I Benešová | 6$^5$ | 5 | | 29 | J Gajdošová | 2 | 0 | | | | | | | | | |
| 29 | J Gajdošová | 7$^7$ | 7 | | | | | | | | | | 1 | C Wozniacki | 6$^6$ | 7 | 6 |
| 21 | D Hantuchová | 2 | 3 | | | | | | | | | | 15 | S Kuznetsova | 7$^8$ | 5 | 1 |
| | P Parmentier | 6 | 6 | | | P Parmentier | 3 | 5 | | | | | | | | | |
| | A Amanmuradova | 6 | 6 | | | A Amanmuradova | 6 | 7 | | | | | | | | | |
| | T Paszek | 4 | 2 | | | | | | | A Amanmuradova | 4 | 2 | | | | | |
| WC | J Hampton | 6 | 2 | 1$^r$ | | | | | 15 | S Kuznetsova | 6 | 6 | | | | | |
| | E Baltacha | 2 | 6 | 5 | | E Baltacha | 4 | 3 | | | | | | | | | |
| | S Errani | 5 | 1 | | 15 | S Kuznetsova | 6 | 6 | | | | | | | | | |
| 15 | S Kuznetsova | 7 | 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 | Fourth round | Fourth round | Fourth round | Fourth round |
| 10 | A Petkovic | 6 | 6 | | | | | | | | | | | | | | |
| Q | E Bychkova | 2 | 2 | | 10 | A Petkovic | 3 | 6 | 6 | | | | | | | | |
| Q | V Diatchenko | 6 | 5 | 2 | | J Zheng | 6 | 3 | 3 | | | | | | | | |
| | J Zheng | 4 | 7 | 6 | | | | | | 10 | A Petkovic | 6 | 6 | | | | |
| WC | C Dellacqua | 5 | 0 | | | | | | | 18 | R Vinci | 4 | 0 | | | | |
| | A Cornet | 7 | 6 | | | A Cornet | 2 | 3 | | | | | | | | | |
| | I-C Begu | 3 | 4 | | 18 | R Vinci | 6 | 6 | | | | | | | | | |
| 18 | R Vinci | 6 | 6 | | | | | | | | | | | 10 | A Petkovic | 6 | 6 |
| 31 | K Kanepi | 6 | 6 | | | | | | | | | | | | C Suárez Navarro | 1 | 4 |
| | T Tanasugarn | 4 | 3 | | 31 | K Kanepi | 4 | 2 | | | | | | | | | |
| | K Date-Krumm | 6$^5$ | 6$^2$ | | Q | S Soler Espinosa | 6 | 6 | | | | | | | | | |
| Q | S Soler Espinosa | 7$^7$ | 7$^7$ | | | | | | | Q | S Soler Espinosa | 0 | 4 | | | | |
| | M Johansson | 2 | 6 | 5 | | | | | | | C Suárez Navarro | 6 | 6 | | | | |
| | C Suárez Navarro | 6 | 4 | 7 | | C Suárez Navarro | 3 | 6 | 6 | | | | | | | | |
| | S Halep | 6 | 7 | | | S Halep | 6 | 2 | 2 | | | | | | | | |
| 6 | N Li | 2 | 5 | | | | | | | | | | | | | | |

#### Section 3

| 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 | Fourth round | Fourth round | Fourth round | Fourth round |
| 4 | V Azarenka | 6 | 6 | | | | | | | | | | | | | |
| | J Larsson | 1 | 3 | | 4 | V Azarenka | 6 | 6 | | | | | | | | |
| | R Marino | 3 | 3 | | | G Dulko | 4 | 3 | | | | | | | | |
| | G Dulko | 6 | 6 | | | | | | 4 | V Azarenka | 1 | 6$^5$ | | | | |
| Q | M Krajicek | 3 | 7$^7$ | 6 | | | | | 28/PR | S Williams | 6 | 7$^7$ | | | | |
| | E Daniilidou | 6 | 6$^4$ | 1 | Q | M Krajicek | 0 | 1 | | | | | | | | |
| | B Jovanovski | 1 | 1 | | 28/PR | S Williams | 6 | 6 | | | | | | | | |
| 28/PR | S Williams | 6 | 6 | | | | | | | | | | 28/PR | S Williams | 6 | 6 |
| 23 | S Pe'er | 6$^5$ | 6 | 6 | | | | | | | | | 16 | A Ivanovic | 3 | 4 |
| | S Mirza | 7$^7$ | 3 | 1 | 23 | S Pe'er | 1 | 6$^4$ | | | | | | | | |
| Q | RL Jani | 2 | 6 | 6$^3$ | WC | S Stephens | 6 | 7$^7$ | | | | | | | | |
| WC | S Stephens | 6 | 3 | 7$^7$ | | | | | WC | S Stephens | 3 | 4 | | | | |
| | E Rodina | 6 | 1 | 2 | | | | | 16 | A Ivanovic | 6 | 6 | | | | |
| | P Cetkovská | 1 | 6 | 6 | | P Cetkovská | | | | | | | | | | |
| | K Pervak | 4 | 2 | | 16 | A Ivanovic | w/o | | | | | | | | | |
| 16 | A Ivanovic | 6 | 6 | | | | | | | | | | | | | |

#### 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 | Third round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| 11 | J Janković | 6 | 6 | | | | | | | | | | | | | | | | |
| WC | A Riske | 2 | 0 | | 11 | J Janković | 6 | 6 | | | | | | | | | | | |
| | J Dokić | 6 | 6 | | | J Dokić | 3 | 4 | | | | | | | | | | | |
| | O Govortsova | 3 | 1 | | | | | | | 11 | J Janković | 4 | 4 | | | | | | |
| | P Martić | 5 | 6 | 6 | | | | | | 17 | A Pavlyuchenkova | 6 | 6 | | | | | | |
| | B Záhlavová-Strýcová | 7 | 3 | 4 | | P Martić | 4 | 6 | 4 | | | | | | | | | | |
| | A Tatishvili | 2 | 2 | | 17 | A Pavlyuchenkova | 6 | 2 | 6 | | | | | | | | | | |
| 17 | A Pavlyuchenkova | 6 | 6 | | | | | | | | | | | | 17 | A Pavlyuchenkova | 5 | 6 | 6 |
| 32 | MJ Martínez Sánchez | 3 | 4 | | | | | | | | | | | | 7 | F Schiavone | 7 | 3 | 4 |
| | M Barthel | 6 | 6 | | | M Barthel | 4 | 5 | | | | | | | | | | | |
| | C Scheepers | 7 | 6 | | | C Scheepers | 6 | 7 | | | | | | | | | | | |
| | A Keothavong | 5 | 3 | | | | | | | | C Scheepers | 7 | 6$^5$ | 3 | | | | | |
| | M Lučić | 6 | 2 | 6 | | | | | | 7 | F Schiavone | 5 | 7$^7$ | 6 | | | | | |
| Q | M Erakovic | 4 | 6 | 4 | | M Lučić | 1 | 1 | | | | | | | | | | | |
| Q | G Voskoboeva | 3 | 6 | 4 | 7 | F Schiavone | 6 | 6 | | | | | | | | | | | |
| 7 | F Schiavone | 6 | 1 | 6 | | | | | | | | | | | | | | | |

### Bottom half
#### Section 5

| 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 | Fourth round | Fourth round | Fourth round |
| 5 | P Kvitová | 6$^3$ | 3 | | | | | | | | | | | | | |
| | A Dulgheru | 7$^7$ | 6 | | | A Dulgheru | 3 | 0 | | | | | | | | |
| | P Mayr-Achleitner | 3 | 3 | | | M Niculescu | 6 | 6 | | | | | | | | |
| | M Niculescu | 6 | 6 | | | | | | | | M Niculescu | 6 | 6 | | | |
| WC | J Craybas | 2 | 4 | | | | | | | 27 | L Šafářová | 0 | 1 | | | |
| WC | M Keys | 6 | 6 | | WC | M Keys | 6 | 5 | 4 | | | | | | | |
| | M Rybáriková | 6 | 3 | 2 | 27 | L Šafářová | 3 | 7 | 6 | | | | | | | |
| 27 | L Šafářová | 2 | 6 | 6 | | | | | | | | | | M Niculescu | 4 | 3 |
| 20 | Y Wickmayer | 6 | 7 | | | | | | | | | | | A Kerber | 6 | 6 |
| | S Cîrstea | 1 | 5 | | 20 | Y Wickmayer | 1 | 0$^r$ | | | | | | | | |
| | A Kudryavtseva | 7$^7$ | 7 | | | A Kudryavtseva | 6 | 3 | | | | | | | | |
| | An Rodionova | 6$^1$ | 5 | | | | | | | | A Kudryavtseva | 3 | 1 | | | |
| WC | L Davis | 6$^3$ | 3 | | | | | | | | A Kerber | 6 | 6 | | | |
| | A Kerber | 7$^7$ | 6 | | | A Kerber | 6 | 4 | 6 | | | | | | | |
| Q | U Radwańska | 2 | 3 | | 12 | A Radwańska | 3 | 6 | 3 | | | | | | | |
| 12 | A Radwańska | 6 | 6 | | | | | | | | | | | | | |

#### Section 6

| 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 | Third round | Fourth round | Fourth round | Fourth round | Fourth round |
| 13 | S Peng | 6 | 6 | | | | | | | | | | | | | | |
| | V Lepchenko | 3 | 4 | | 13 | S Peng | 6 | 6 | | | | | | | | | |
| | V Razzano | 2 | 3 | | | T Pironkova | 2 | 4 | | | | | | | | | |
| | T Pironkova | 6 | 6 | | | | | | 13 | S Peng | 6 | 7$^7$ | | | | | |
| | M Doi | 2 | 7$^{14}$ | 2$^r$ | | | | | 19 | J Görges | 4 | 6$^1$ | | | | | |
| | L Pous Tió | 6 | 6$^{12}$ | 5 | | L Pous Tió | 3 | 1 | | | | | | | | | |
| | K Barrois | 3 | 2 | | 19 | J Görges | 6 | 6 | | | | | | | | | |
| 19 | J Görges | 6 | 6 | | | | | | | | | | | 13 | S Peng | 4 | 6$^6$ |
| 26 | F Pennetta | 6 | 6 | | | | | | | | | | | 26 | F Pennetta | 6 | 7$^8$ |
| WC | A Rezaï | 1 | 4 | | 26 | F Pennetta | 6 | 6 | | | | | | | | | |
| | M Oudin | 0 | 6$^7$ | | Q | R Oprandi | 0 | 3 | | | | | | | | | |
| Q | R Oprandi | 6 | 7$^9$ | | | | | | 26 | F Pennetta | 6 | 3 | 6 | | | | |
| | A Yakimova | 6 | 4 | 6 | | | | | 3 | M Sharapova | 3 | 6 | 4 | | | | |
| Q | N Lertcheewakarn | 0 | 6 | 3 | | A Yakimova | 1 | 1 | | | | | | | | | |
| | H Watson | 6 | 5 | 3 | 3 | M Sharapova | 6 | 6 | | | | | | | | | |
| 3 | M Sharapova | 3 | 7 | 6 | | | | | | | | | | | | | |

#### Section 7

| 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 | Third round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| 8 | M Bartoli | 7 | 6 | | | | | | | | | | | | | | | |
| Q | A Panova | 5 | 3 | | 8 | M Bartoli | 6$^2$ | 2 | | | | | | | | | | |
| | C McHale | 6 | 6$^5$ | 6 | | C McHale | 7$^7$ | 6 | | | | | | | | | | |
| Q | A Wozniak | 3 | 7$^7$ | 4 | | | | | | C McHale | 2 | 3 | | | | | | |
| | V Dushevina | 6 | 6 | | | | | | 25 | M Kirilenko | 6 | 6 | | | | | | |
| | A Sevastova | 3 | 4 | | | V Dushevina | 1 | 2 | | | | | | | | | | |
| | E Makarova | 6 | 1 | 6$^3$ | 25 | M Kirilenko | 6 | 6 | | | | | | | | | | |
| 25 | M Kirilenko | 4 | 6 | 7$^7$ | | | | | | | | | | 25 | M Kirilenko | 2 | 7$^{17}$ | 3 |
| 24 | N Petrova | 6 | 1 | 6 | | | | | | | | | | 9 | S Stosur | 6 | 6$^{15}$ | 6 |
| Q | Y-j Chan | 3 | 6 | 4 | 24 | N Petrova | 6 | 6 | | | | | | | | | | |
| | B Mattek-Sands | 1 | 3 | | | P Hercog | 2 | 4 | | | | | | | | | | |
| | P Hercog | 6 | 6 | | | | | | 24 | N Petrova | 6$^5$ | 7$^7$ | 5 | | | | | |
| | C Vandeweghe | 7 | 6 | | | | | | 9 | S Stosur | 7$^7$ | 6$^5$ | 7 | | | | | |
| | A Brianti | 5 | 3 | | | C Vandeweghe | 3 | 4 | | | | | | | | | | |
| | S Arvidsson | 2 | 3 | | 9 | S Stosur | 6 | 6 | | | | | | | | | | |
| 9 | S Stosur | 6 | 6 | | | | | | | | | | | | | | | |

#### Section 8

| 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 | Fourth round | Fourth round | Fourth round | Fourth round |
| 14 | D Cibulková | 6 | 6 | | | | | | | | | | | | | | |
| | S Zhang | 3 | 4 | | 14 | D Cibulková | 6 | 3 | 5 | | | | | | | | |
| | K Zakopalová | 6 | 4 | 2 | | I Falconi | 2 | 6 | 7 | | | | | | | | |
| | I Falconi | 3 | 6 | 6 | | | | | | | I Falconi | 0 | 1 | | | | |
| | V Dolonc | 4 | 3 | | | | | | | 22 | S Lisicki | 6 | 6 | | | | |
| | V Williams | 6 | 6 | | | V Williams | w/o | | | | | | | | | | |
| PR | A Bondarenko | 3 | 3 | | 22 | S Lisicki | | | | | | | | | | | |
| 22 | S Lisicki | 6 | 6 | | | | | | | | | | | 22 | S Lisicki | 2 | 3 |
| 30 | A Medina Garrigues | 6$^4$ | 6 | 6 | | | | | | | | | | 2 | V Zvonareva | 6 | 6 |
| Q | K Knapp | 7$^7$ | 4 | 3 | 30 | A Medina Garrigues | 6 | 6 | | | | | | | | | |
| Q | L Robson | 7$^7$ | 1 | | Q | L Robson | 2 | 3 | | | | | | | | | |
| | A Morita | 6$^5$ | 0$^r$ | | | | | | | 30 | A Medina Garrigues | 4 | 5 | | | | |
| | L Hradecká | 3 | 0 | | | | | | | 2 | V Zvonareva | 6 | 7 | | | | |
| | K Bondarenko | 6 | 6 | | | K Bondarenko | 5 | 6 | 3 | | | | | | | | |
| Q | S Foretz Gacon | 3 | 0 | | 2 | V Zvonareva | 7 | 3 | 6 | | | | | | | | |
| 2 | V Zvonareva | 6 | 6 | | | | | | | | | | | | | | |

## Championship match statistics

| Category | Stosur | S. Williams |
| 1st serve % | 29/46 (63%) | 31/56 (55%) |
| 1st serve points won | 22 of 29 = 76% | 20 of 31 = 65% |
| 2nd serve points won | 10 of 17 = 59% | 7 of 25 = 28% |
| Total service points won | 32 of 46 = 69.57% | 27 of 56 = 48.21% |
| Aces | 2 | 5 |
| Double faults | 1 | 2 |
| Winners | 20 | 19 |
| Unforced errors | 12 | 25 |
| Net points won | 9 of 13 = 69% | 6 of 11 = 55% |
| Break points converted | 5 of 9 = 56% | 1 of 5 = 20% |
| Return points won | 29 of 56 = 52% | 14 of 46 = 30% |
| Total points won | 61 | 41 |
| Source |||