# 2011 Open Seguros Bolívar – Women's singles

Paula Ormaechea was the defending champion, but chose not to participate.
Mariana Duque won the title, defeating María Fernanda Álvarez Terán 7–6$^{(8–6)}$, 4–6, 6–3 in the final.

## Seeds

* Julia Cohen (quarterfinals)
* María Fernanda Álvarez Terán (final)
* Vivian Segnini (second round)
* Andrea Koch-Benvenuto (quarterfinals)
* Mariana Duque (champion)
* Andrea Gámiz (semifinals)
* Karen Castiblanco (quarterfinals)
* Adriana Pérez (quarterfinals)

## 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

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 6 | Andrea Gámiz | 3 | 1 | | | | | |
| 5 | Mariana Duque | 6 | 6 | | | | | |
| 5 | Mariana Duque | 6 | 6 | 5 | Mariana Duque | 7$^8$ | 4 | 6 |
| | | | | 2 | María Fernanda Álvarez Terán | 6$^6$ | 6 | 3 |
| | Sachia Vickery | 1 | 5 | 2 | María Fernanda Álvarez Terán | 6$^6$ | 6 | 3 |
| 2 | María Fernanda Álvarez Terán | 6 | 7 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | J Cohen | 6 | 6 | | | | | | | | | | | | | | |
| | D Mills | 3 | 1 | | 1 | J Cohen | 6 | 6 | | | | | | | | | |
| | I Robbiani | 6 | 6 | | | I Robbiani | 2 | 2 | | | | | | | | | |
| WC | M Gómez | 2 | 0 | | | | | | 1 | J Cohen | 6 | 3 | 0 | | | | |
| | S Theiler | 1 | 6$^4$ | | | | | | 6 | A Gámiz | 4 | 6 | 6 | | | | |
| Q | PC Robles Garcia | 6 | 7$^7$ | | Q | PC Robles Garcia | 0 | 3 | | | | | | | | | |
| Q | C Tobar | 1 | 0 | | 6 | A Gámiz | 6 | 6 | | | | | | | | | |
| 6 | A Gámiz | 6 | 6 | | | | | | | | | | | 6 | A Gámiz | 3 | 1 |
| 4 | A Koch-Benvenuto | 6 | 0 | 6 | | | | | | | | | | 5 | M Duque | 6 | 6 |
| | C Zeballos | 3 | 6 | 1 | 4 | A Koch-Benvenuto | 6 | 6 | | | | | | | | | |
| | A Moreno-Kaste | 1 | 7 | 2 | WC | V Corning | 3 | 3 | | | | | | | | | |
| WC | V Corning | 6 | 5 | 6 | | | | | 4 | A Koch-Benvenuto | 1 | 1 | | | | | |
| WC | L Muma | 6 | 6 | | | | | | 5 | M Duque | 6 | 6 | | | | | |
| Q | R Beddow | 2 | 2 | | WC | L Muma | 1 | 0 | | | | | | | | | |
| | L Sarmenti | 1 | 0 | | 5 | M Duque | 6 | 6 | | | | | | | | | |
| 5 | M Duque | 6 | 6 | | | | | | | | | | | | | | |

### Bottom half

| 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 |
| 7 | K Castiblanco | 6 | 6 | | | | | | | | | | | | | | |
| Q | LS Sánchez Pérez | 0 | 0 | 7 | K Castiblanco | 6 | 7 | | | | | | | | | | |
| Q | D Woodcock | 1 | 3 | WC | A Prisco | 2 | 5 | | | | | | | | | | |
| WC | A Prisco | 6 | 6 | | | | | | 7 | K Castiblanco | 3 | 6 | 2 | | | | |
| | S Vickery | 6 | 6 | | | | | | | S Vickery | 6 | 3 | 6 | | | | |
| Q | A Riley | 1 | 3 | | S Vickery | 6 | 3 | 7 | | | | | | | | | |
| | C Lucero | 4 | 2 | 3 | V Segnini | 3 | 6 | 5 | | | | | | | | | |
| 3 | V Segnini | 6 | 6 | | | | | | | | | | | | S Vickery | 1 | 5 |
| 8 | A Pérez | 6 | 6 | | | | | | | | | | | 2 | MF Álvarez Terán | 6 | 7 |
| | I Várgas Calvo | 0 | 2 | 8 | A Pérez | 6 | 3 | 6 | | | | | | | | | |
| | MF Alves | 6 | 6 | | MF Alves | 4 | 6 | 1 | | | | | | | | | |
| Q | P Cortes | 2 | 2 | | | | | | 8 | A Pérez | 6 | 0 | 3 | | | | |
| LL | M Cubelli | 6 | 6 | | | | | | 2 | MF Álvarez Terán | 3 | 6 | 6 | | | | |
| Q | M Irazusta | 2 | 1 | LL | M Cubelli | 1 | 0 | | | | | | | | | | |
| | C Forte | 5 | 1 | 2 | MF Álvarez Terán | 6 | 6 | | | | | | | | | | |
| 2 | MF Álvarez Terán | 7 | 6 | | | | | | | | | | | | | | |