# 2013 San Luis Open Challenger – Singles

Rubén Ramírez Hidalgo was the defending champion, but chose not to compete. Alessio di Mauro defeated Daniel Kosakowski 4–6, 6–3, 6–2 in the final to win the title.

## Seeds

* John Millman (second round)
* Jonathan Dasnières de Veigy (second round)
* Diego Sebastián Schwartzman (first round)
* Marco Chiudinelli (semifinals)
* Malek Jaziri (second round)
* Peter Gojowczyk (quarterfinals)
* Andrej Martin (first round)
* Agustín Velotti (quarterfinals, withdrew)

## 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 |
| | Daniel Kosakowski | 6 | 6 | | | | | | |
| 4 | Marco Chiudinelli | 3 | 4 | | | | | | |
| 4 | Marco Chiudinelli | 3 | 4 | | | Daniel Kosakowski | 6 | 3 | 2 |
| | | | | | Q | Alessio di Mauro | 4 | 6 | 6 |
| | Tennys Sandgren | 6 | 4 | 2 | Q | Alessio di Mauro | 4 | 6 | 6 |
| Q | Alessio di Mauro | 3 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | J Millman | 6 | 6 | | | | | | | | | | | | | | | |
| WC | M Sánchez | 1 | 0 | | 1 | J Millman | 4 | 6 | 5 | | | | | | | | | |
| | D Kosakowski | 6 | 4 | 7 | | D Kosakowski | 6 | 0 | 7 | | | | | | | | | |
| | M Reid | 3 | 6 | 5 | | | | | | | D Kosakowski | w/o | | | | | | |
| Q | C Díaz Figueroa | 6 | 6 | | | | | | | 8 | A Velotti | | | | | | | |
| WC | M Gallardo Valles | 2 | 3 | | Q | C Díaz Figueroa | 6$^3$ | 4 | | | | | | | | | | |
| | D Lojda | 6 | 3 | 5 | 8 | A Velotti | 7$^7$ | 6 | | | | | | | | | | |
| 8 | A Velotti | 2 | 6 | 7 | | | | | | | | | | | | D Kosakowski | 6 | 6 |
| 4 | M Chiudinelli | 4 | | | | | | | | | | | | | 4 | M Chiudinelli | 3 | 4 |
| | N Basilashvili | 4$^r$ | | | 4 | M Chiudinelli | 6 | 7$^8$ | | | | | | | | | | |
| | G Jones | 6 | 6 | | | G Jones | 3 | 6$^6$ | | | | | | | | | | |
| | R Ghedin | 3 | 2 | | | | | | | 4 | M Chiudinelli | 6 | 2 | 6 | | | | |
| Alt | A Menéndez Maceiras | 7$^8$ | 5 | 6 | | | | | | 6 | P Gojowczyk | 4 | 6 | 1 | | | | |
| WC | N Massú | 6$^6$ | 7 | 4 | Alt | A Menéndez Maceiras | 6 | 6$^8$ | 5 | | | | | | | | | |
| | M Demoliner | 7$^8$ | 3 | 3 | 6 | P Gojowczyk | 1 | 7$^{10}$ | 7 | | | | | | | | | |
| 6 | P Gojowczyk | 6$^6$ | 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | A Martin | 3 | 3 | | | | | | | | | | | | | | | |
| | T Sandgren | 6 | 6 | | | T Sandgren | 2 | 7$^{13}$ | 6 | | | | | | | | | |
| | S Vagnozzi | 6 | 4 | 5 | | T Fabbiano | 6 | 6$^{11}$ | 2 | | | | | | | | | |
| | T Fabbiano | 4 | 6 | 7 | | | | | | | T Sandgren | 6 | 7$^7$ | | | | | |
| | P Torebko | 6 | 7$^7$ | | | | | | | | M Teixeira | 0 | 6$^4$ | | | | | |
| WC | D Garza | 3 | 6$^0$ | | | P Torebko | 3 | 6 | 4 | | | | | | | | | |
| | M Teixeira | 7$^7$ | 2 | 6 | | M Teixeira | 6 | 2 | 6 | | | | | | | | | |
| 3 | DS Schwartzman | 6$^4$ | 6 | 3 | | | | | | | | | | | T Sandgren | 6 | 4 | 2 |
| 5 | M Jaziri | 6 | 6 | | | | | | | | | | | Q | A di Mauro | 3 | 6 | 6 |
| Q | R Gonzales | 4 | 4 | | 5 | M Jaziri | 2 | 6$^3$ | | | | | | | | | | |
| Q | A di Mauro | 6 | 6 | | Q | A di Mauro | 6 | 7$^7$ | | | | | | | | | | |
| | N Langer | 1 | 4 | | | | | | | Q | A di Mauro | 6 | 6 | | | | | |
| | G Burquier | 6 | 2 | 6 | | | | | | | G Burquier | 2 | 1 | | | | | |
| | Florian Reynet | 2 | 6 | 1 | | G Burquier | 6 | 4 | 6 | | | | | | | | | |
| Q | M Arévalo | 5 | 3 | | 2 | J Dasnières de Veigy | 0 | 6 | 0 | | | | | | | | | |
| 2 | J Dasnières de Veigy | 7 | 6 | | | | | | | | | | | | | | | |