# 2012 Quito Challenger – Singles

Sebastián Decoud was the defending champion, but lost in the second round. João Souza won the title, defeating Guillaume Rufin 6–2, 7–6$^{(7–4)}$ in the final.

## Seeds

* Frederico Gil (first round)
* Guillaume Rufin (final)
* Martín Alund (semifinals)
* João Souza (champion)
* Eduardo Schwank (quarterfinals)
* Víctor Estrella (quarterfinals, retired because of a right elbow injury)
* Carlos Salamanca (first round)
* Júlio César Campozano (second 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 |
| WC | Nicolás Massú | 3 | 2 | | | | | |
| 4 | João Souza | 6 | 6 | | | | | |
| 4 | João Souza | 6 | 6 | | 4 | João Souza | 6 | 7$^7$ |
| | | | | | 2 | Guillaume Rufin | 2 | 6$^4$ |
| 3 | Martín Alund | 7$^{11}$ | 4 | 6$^2$ | 2 | Guillaume Rufin | 2 | 6$^4$ |
| 2 | Guillaume Rufin | 6$^9$ | 6 | 7$^7$ | | | | |

### 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 |
| 1/Q | F Gil | 7$^7$ | 5 | 4 | | | | | | | | | | | | | |
| | D Zivkovic | 6$^4$ | 7 | 6 | | D Zivkovic | 6$^3$ | 3 | | | | | | | | | |
| Q | MA Reyes-Varela | 4 | 4 | | WC | N Massú | 7$^7$ | 6 | | | | | | | | | |
| WC | N Massú | 6 | 6 | | | | | | | WC | N Massú | 6 | 6 | | | | |
| Q | Juan Carvajal | 6$^5$ | 6 | 2 | | | | | | 5 | E Schwank | 4 | 2 | | | | |
| | Chris Letcher | 7$^7$ | 3 | 6 | | Chris Letcher | 3 | 2 | | | | | | | | | |
| | C Lindell | 1 | 1$^r$ | | 5 | E Schwank | 6 | 6 | | | | | | | | | |
| 5 | E Schwank | 6 | 4 | | | | | | | | | | | WC | N Massú | 3 | 2 |
| 4 | J Souza | 7$^7$ | 7$^7$ | | | | | | | | | | | 4 | J Souza | 6 | 6 |
| | M Arévalo | 6$^4$ | 6$^4$ | | 4 | J Souza | 7 | 6$^2$ | 7 | | | | | | | | |
| | N Barrientos | 4 | 4 | | | D Beretta | 5 | 7$^7$ | 5 | | | | | | | | |
| | D Beretta | 6 | 6 | | | | | | | 4 | J Souza | 7$^7$ | 3 | | | | |
| WC | Lucas Dages | 2 | 2 | | | | | | | 6 | V Estrella | 6$^4$ | 0$^r$ | | | | |
| | J Witten | 6 | 6 | | | J Witten | 2 | 2 | | | | | | | | | |
| | D Garza | 4 | 2 | | 6 | V Estrella | 6 | 6 | | | | | | | | | |
| 6 | V Estrella | 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 | JC Campozano | 7$^7$ | 6$^4$ | 7 | | | | | | | | | | | | | | | |
| | L Recouderc | 6$^2$ | 7$^7$ | 5 | 8 | JC Campozano | 6$^2$ | 4 | | | | | | | | | | | |
| | A Molteni | 6 | 6 | | | A Molteni | 7$^7$ | 6 | | | | | | | | | | | |
| WC | José Chamba Gómez | 0 | 0 | | | | | | | | A Molteni | 2 | 6$^6$ | | | | | | |
| | Guillermo Durán | 6 | 6 | | | | | | | 3 | M Alund | 6 | 7$^8$ | | | | | | |
| | K Kim | 2 | 4 | | | Guillermo Durán | 7$^7$ | 6$^4$ | 1 | | | | | | | | | | |
| | Maximiliano Estévez | 4 | 1 | | 3 | M Alund | 6$^1$ | 7$^7$ | 6 | | | | | | | | | | |
| 3 | M Alund | 6 | 6 | | | | | | | | | | | | 3 | M Alund | 7$^{11}$ | 4 | 6$^2$ |
| 7 | C Salamanca | 6$^4$ | 7 | 4 | | | | | | | | | | | 2 | G Rufin | 6$^9$ | 6 | 7$^7$ |
| | JS Cabal | 7$^7$ | 5 | 6 | | JS Cabal | 6 | 6 | | | | | | | | | | | |
| | S Decoud | 6 | 6 | | | S Decoud | 4 | 1 | | | | | | | | | | | |
| WC | Joseph Correa | 1 | 2 | | | | | | | | JS Cabal | 6 | 6$^{12}$ | 3 | | | | | |
| | M Demoliner | 6 | 7$^7$ | | | | | | | 2 | G Rufin | 4 | 7$^{14}$ | 6 | | | | | |
| | G Rivera-Aránguiz | 3 | 6$^5$ | | | M Demoliner | 1 | 4 | | | | | | | | | | | |
| Q | G Tošić | 6$^3$ | 1 | | 2 | G Rufin | 6 | 6 | | | | | | | | | | | |
| 2 | G Rufin | 7$^7$ | 6 | | | | | | | | | | | | | | | | |