# 2011 Brussels Open – Singles

World No. 1 Caroline Wozniacki won the title, beating Peng Shuai in the final 2–6, 6–3, 6–3. It was Wozniacki's 16th career title and 4th of the year.

## Seeds

The top two seeds received a bye into the second round.
* Caroline Wozniacki (champion)
* Vera Zvonareva (semifinals)
* Francesca Schiavone (semifinals)
* Jelena Janković (second round)
* Shahar Pe'er (first round)
* Yanina Wickmayer (quarterfinals, retired due to a back injury)
* Alexandra Dulgheru (quarterfinals)
* Peng Shuai (final)

## 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 | Final |
| 1 | Caroline Wozniacki | 6 | 4 | 6 | | | | | |
| 3 | Francesca Schiavone | 4 | 6 | 3 | | | | | |
| 3 | Francesca Schiavone | 4 | 6 | 3 | 1 | Caroline Wozniacki | 2 | 6 | 6 |
| | | | | | 8 | Peng Shuai | 6 | 3 | 3 |
| 8 | Peng Shuai | 6 | 6 | | 8 | Peng Shuai | 6 | 3 | 3 |
| 2 | Vera Zvonareva | 3 | 3 | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | C Wozniacki | 6 | 7 | | | | | | | | | | |
| WC | A-S Mestach | 3 | 6$^3$ | | | V Lepchenko | 4 | 6$^5$ | | | | | | | | | | |
| | V Lepchenko | 6 | 7 | | | | | | | 1 | C Wozniacki | 2 | | | | | | |
| | P Schnyder | 3 | 6 | 2 | | | | | | 6 | Y Wickmayer | 0$^r$ | | | | | | |
| Q | A van Uytvanck | 6 | 2 | 6 | Q | A van Uytvanck | 6$^2$ | 4 | | | | | | | | | | |
| Q | K Kanepi | 1 | 6 | 5 | 6 | Y Wickmayer | 7 | 6 | | | | | | | | | | |
| 6 | Y Wickmayer | 6 | 4 | 7 | | | | | | | | | | 1 | C Wozniacki | 6 | 4 | 6 |
| 3 | F Schiavone | 6 | 7 | | | | | | | | | | | 3 | F Schiavone | 4 | 6 | 3 |
| | T Pironkova | 2 | 5 | | 3 | F Schiavone | 6 | 6 | | | | | | | | | | |
| | Z Ondrášková | 5 | 3 | | LL | I Falconi | 4 | 4 | | | | | | | | | | |
| LL | I Falconi | 7 | 6 | | | | | | | 3 | F Schiavone | 6 | 6 | | | | | |
| | J Zheng | 4 | 6 | 1 | | | | | | | A Morita | 2 | 3 | | | | | |
| | A Morita | 6 | 4 | 6 | | A Morita | 1 | 6 | 7 | | | | | | | | | |
| PR | C Dellacqua | 6 | 5 | 6 | PR | C Dellacqua | 6 | 0 | 5 | | | | | | | | | |
| 5 | S Pe'er | 1 | 7 | 3 | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | S Peng | 6 | 1 | 6 | | | | | | | | | | | | | |
| WC | K Flipkens | 0 | 6 | 3 | 8 | S Peng | 6 | 6 | | | | | | | | | |
| Q | A Spears | 6 | 6 | | Q | A Spears | 2 | 0 | | | | | | | | | |
| | C Scheepers | 3 | 1 | | | | | | | 8 | S Peng | 6 | 6 | | | | |
| | S Arvidsson | 6 | 7 | | | | | | | | S Arvidsson | 2 | 4 | | | | |
| | C Vandeweghe | 3 | 6$^4$ | | | S Arvidsson | 3 | 6 | 6 | | | | | | | | |
| | A Rodionova | 2 | 3 | | 4 | J Janković | 6 | 3 | 3 | | | | | | | | |
| 4 | J Janković | 6 | 6 | | | | | | | | | | | 8 | S Peng | 6 | 6 |
| 7 | A Dulgheru | 2 | 6 | 6 | | | | | | | | | | 2 | V Zvonareva | 3 | 3 |
| | P Hercog | 6 | 4 | 2 | 7 | A Dulgheru | 6 | 6 | | | | | | | | | |
| | K Zakopalová | 7 | 3 | 6 | | K Zakopalová | 3 | 2 | | | | | | | | | |
| | K Pervak | 5 | 6 | 4 | | | | | | 7 | A Dulgheru | 0 | 1 | | | | |
| Q | G Voskoboeva | 5 | | | | | | | | 2 | V Zvonareva | 6 | 6 | | | | |
| | Á Szávay | 2$^r$ | | | Q | G Voskoboeva | 6 | 4 | 3 | | | | | | | | |
| | | | | | 2 | V Zvonareva | 2 | 6 | 6 | | | | | | | | |