# 2011 Challenger Ciudad de Guayaquil – Singles

Paul Capdeville was the defending champion but decided not to participate. Matteo Viola won the title, defeating Guido Pella 6–4, 6–1 in the final.

## Seeds

* Diego Junqueira (first round)
* João Souza (second round)
* Rogério Dutra da Silva (second round)
* Rubén Ramírez Hidalgo (semifinals)
* Wayne Odesnik (quarterfinals)
* Máximo González (second round)
* Alessandro Giannessi (first round)
* Daniel Muñoz-de la Nava (first round)

## 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 |
| Q | Guido Pella | 6 | 6 | | | | | |
| 4 | Rubén Ramírez Hidalgo | 4 | 1 | | | | | |
| 4 | Rubén Ramírez Hidalgo | 4 | 1 | | Q | Guido Pella | 4 | 1 |
| | | | | | | Matteo Viola | 6 | 6 |
| | Matteo Viola | 6 | 3 | 6 | | Matteo Viola | 6 | 6 |
| Q | Pedro Sousa | 2 | 6 | 1 | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | D Junqueira | 5 | 1 | | | | | | | | | | | | | | | |
| | P Červenák | 7 | 6 | | | P Červenák | 6 | 7$^7$ | | | | | | | | | | |
| | JP Brzezicki | 3 | 4 | | | G Naso | 3 | 6$^5$ | | | | | | | | | | |
| | G Naso | 6 | 6 | | | | | | | | P Červenák | 6$^3$ | 4 | | | | | |
| Q | Guido Pella | 6 | 3 | 6 | | | | | | Q | Guido Pella | 7$^7$ | 6 | | | | | |
| | B Dabul | 4 | 6 | 1 | Q | Guido Pella | 3 | 6 | 6 | | | | | | | | | |
| | Eduardo Struvay | 6 | 6 | | | Eduardo Struvay | 6 | 1 | 2 | | | | | | | | | |
| 7 | A Giannessi | 3 | 0 | | | | | | | | | | | | Q | Guido Pella | 6 | 6 |
| 4 | R Ramírez Hidalgo | 6 | 6 | | | | | | | | | | | | 4 | R Ramírez Hidalgo | 4 | 1 |
| | M Felder | 4 | 3 | | 4 | R Ramírez Hidalgo | 6 | 6$^{11}$ | 6 | | | | | | | | | |
| | M Alund | 6 | 7$^8$ | | | M Alund | 3 | 7$^{13}$ | 1 | | | | | | | | | |
| | F Romboli | 2 | 6$^6$ | | | | | | | 4 | R Ramírez Hidalgo | 2 | 6 | 6 | | | | |
| | S Decoud | 6 | 4 | 6 | | | | | | 5 | W Odesnik | 6 | 1 | 1 | | | | |
| Q | Guillermo Duran | 1 | 6 | 4 | | S Decoud | 4 | 6 | 2 | | | | | | | | | |
| WC | D Hidalgo | 3 | 4 | | 5 | W Odesnik | 6 | 4 | 6 | | | | | | | | | |
| 5 | W Odesnik | 6 | 6 | | | | | | | | | | | | | | | |

### 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 |
| 8 | D Muñoz-de la Nava | 4 | 6$^1$ | | | | | | | | | | | | | | | | |
| WC | JC Campozano | 6 | 7$^7$ | | WC | JC Campozano | 7 | 5 | 5 | | | | | | | | | | |
| Q | L Tavares | 3 | 5 | | | A Molteni | 5 | 7 | 7 | | | | | | | | | | |
| | A Molteni | 6 | 7 | | | | | | | | A Molteni | 4 | 4 | | | | | | |
| | M Viola | 6 | 6 | | | | | | | | M Viola | 6 | 6 | | | | | | |
| | G Elias | 1 | 2 | | | M Viola | 6 | 6 | | | | | | | | | | | |
| LL | G Andreozzi | 1 | 2 | | 3 | R Dutra da Silva | 4 | 3 | | | | | | | | | | | |
| 3 | R Dutra da Silva | 6 | 6 | | | | | | | | | | | | | M Viola | 6 | 3 | 6 |
| 6 | M González | 6 | 7 | | | | | | | | | | | | Q | P Sousa | 2 | 6 | 1 |
| LL | I Endara | 4 | 6$^1$ | | 6 | M González | 6 | 4 | 4 | | | | | | | | | | |
| WC | R Quiroz | 4 | 6 | 4 | | P Galdón | 3 | 6 | 6 | | | | | | | | | | |
| | P Galdón | 6 | 0 | 6 | | | | | | | P Galdón | 6 | 5 | 6$^4$ | | | | | |
| Q | P Sousa | 7 | 6 | | | | | | | Q | P Sousa | 0 | 7 | 7$^7$ | | | | | |
| LL | JS Gómez | 5 | 2 | | Q | P Sousa | 4 | 6 | 6 | | | | | | | | | | |
| | Axel Michon | 2 | 7$^8$ | 4 | 2 | J Souza | 6 | 2 | 1 | | | | | | | | | | |
| 2 | J Souza | 6 | 6$^6$ | 6 | | | | | | | | | | | | | | | |