# 2012 Copa San Juan Gobierno – Singles

Thiemo de Bakker won the final 6–2, 3–6, 6–2 against Martín Alund.

## Seeds

* Leonardo Mayer (first round)
* João Sousa (first round)
* Guido Pella (second round)
* Horacio Zeballos (first round)
* Guillaume Rufin (semifinals)
* Rogério Dutra da Silva (quarterfinals)
* Frederico Gil (first round)
* Martín Alund (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 |
| 5 | Guillaume Rufin | 4 | 7$^7$ | 1 | | | | | |
| | Thiemo de Bakker | 6 | 6$^4$ | 6 | | | | | |
| | Thiemo de Bakker | 6 | 6$^4$ | 6 | | Thiemo de Bakker | 6 | 3 | 6 |
| | | | | | 8 | Martín Alund | 2 | 6 | 2 |
| | Iván Navarro | 3 | 2 | | 8 | Martín Alund | 2 | 6 | 2 |
| 8 | Martín Alund | 6 | 6 | | | | | | |

### 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 | L Mayer | 3 | 6 | 4 | | | | | | | | | | | | | | |
| | M González | 6 | 4 | 6 | | M González | 6 | 6 | | | | | | | | | | |
| | J Martí | 6 | 4 | 6 | | J Martí | 4 | 3 | | | | | | | | | | |
| | P Sousa | 1 | 6 | 4 | | | | | | | M González | 5 | 0 | | | | | |
| WC | Facundo Alvo | 1 | 2 | | | | | | | 5 | G Rufin | 7 | 6 | | | | | |
| Q | Leandro Migani | 6 | 6 | | Q | Leandro Migani | 6 | 6$^2$ | 0 | | | | | | | | | |
| | F Bagnis | 6 | 4 | 4 | 5 | G Rufin | 2 | 7$^7$ | 6 | | | | | | | | | |
| 5 | G Rufin | 0 | 6 | 6 | | | | | | | | | | 5 | G Rufin | 4 | 7$^7$ | 1 |
| 4 | H Zeballos | 5 | 2 | | | | | | | | | | | | T de Bakker | 6 | 6$^4$ | 6 |
| | T de Bakker | 7 | 6 | | | T de Bakker | 6 | 7$^9$ | | | | | | | | | | |
| WC | Diego Schwartzman | 5 | 2 | | | F Argüello | 4 | 6$^7$ | | | | | | | | | | |
| | F Argüello | 7 | 6 | | | | | | | | T de Bakker | 7$^7$ | 6 | | | | | |
| | B Westerhof | 6 | 7$^8$ | | | | | | | | B Westerhof | 6$^4$ | 4 | | | | | |
| WC | R Olivo | 3 | 6$^6$ | | | B Westerhof | 6 | 6 | | | | | | | | | | |
| Q | S Robert | 6 | 6 | | Q | S Robert | 1 | 4 | | | | | | | | | | |
| 7 | F Gil | 4 | 0 | | | | | | | | | | | | | | | |

### Bottom 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 |
| 6 | R Dutra da Silva | 6 | 6 | | | | | | | | | | | | | | |
| | P Capdeville | 2 | 0 | | 6 | R Dutra da Silva | 6 | 6 | | | | | | | | | |
| SE | R Hocevar | 4 | 4 | | | G Andreozzi | 4 | 2 | | | | | | | | | |
| | G Andreozzi | 6 | 6 | | | | | | 6 | R Dutra da Silva | 6$^0$ | 6 | 2 | | | | |
| | I Navarro | 7$^7$ | 7$^7$ | | | | | | | I Navarro | 7$^7$ | 1 | 6 | | | | |
| | J-P Smith | 6$^3$ | 6$^4$ | | | I Navarro | 6 | 6 | | | | | | | | | |
| Q | T Schoorel | 6$^5$ | 4 | | 3 | G Pella | 3 | 2 | | | | | | | | | |
| 3 | G Pella | 7$^7$ | 6 | | | | | | | | | | | | I Navarro | 3 | 2 |
| 8 | M Alund | 7 | 7 | | | | | | | | | | | 8 | M Alund | 6 | 6 |
| WC | D Junqueira | 5 | 5 | | 8 | M Alund | 7 | 6 | | | | | | | | | |
| | M Trungelliti | 7 | 4 | 7 | | M Trungelliti | 5 | 2 | | | | | | | | | |
| | E Schwank | 5 | 6 | 5 | | | | | 8 | M Alund | 6$^5$ | 6 | 6 | | | | |
| Q | A Collarini | 6 | 6 | | | | | | | G Elias | 7$^7$ | 3 | 2 | | | | |
| SE | N Massú | 1 | 0 | | Q | A Collarini | 4 | 4 | | | | | | | | | |
| | G Elias | 6 | 4 | 6 | | G Elias | 6 | 6 | | | | | | | | | |
| 2 | J Sousa | 4 | 6 | 1 | | | | | | | | | | | | | |