# 2015 Torneo Internacional Challenger León – Singles

Rajeev Ram was the defending champion, but lost in the second round to Daniel Nguyen.
Austin Krajicek won the title, defeating Adrián Menéndez Maceiras 6–7$^{(3–7)}$, 7–6$^{(7–5)}$, 6–4 in the final.

## Seeds

* Adrián Menéndez Maceiras (final)
* Alejandro Falla (semifinals)
* Rajeev Ram (second round)
* Austin Krajicek (champion)
* Horacio Zeballos (semifinals)
* Michał Przysiężny (first round)
* Gerald Melzer (quarterfinals)
* Chase Buchanan (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 | Final |
| 1 | Adrián Menéndez Maceiras | 7$^7$ | 5 | 6 | | | | | |
| 5 | Horacio Zeballos | 6$^3$ | 7 | 4 | | | | | |
| 5 | Horacio Zeballos | 6$^3$ | 7 | 4 | 1 | Adrián Menéndez Maceiras | 7$^7$ | 6$^5$ | 4 |
| | | | | | 4 | Austin Krajicek | 6$^3$ | 7$^7$ | 6 |
| 4 | Austin Krajicek | 6 | 7$^7$ | | 4 | Austin Krajicek | 6$^3$ | 7$^7$ | 6 |
| 2 | Alejandro Falla | 1 | 6$^3$ | | | | | | |

### 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 | A Menéndez Maceiras | 6 | 4 | 6 | | | | | | | | | | | | | | |
| | JI Londero | 1 | 6 | 3 | 1 | A Menéndez Maceiras | 6 | 6 | | | | | | | | | | |
| WC | L Gómez | 7$^7$ | 7 | | WC | L Gómez | 3 | 3 | | | | | | | | | | |
| | B Klein | 6$^4$ | 5 | | | | | | | 1 | A Menéndez Maceiras | 6 | 7$^7$ | | | | | |
| | J Jung | 2 | 6$^5$ | | | | | | | 7 | G Melzer | 2 | 6$^5$ | | | | | |
| | N Langer | 6 | 7$^7$ | | | N Langer | 4 | 7$^7$ | 2 | | | | | | | | | |
| | D Propoggia | 4 | 6$^7$ | | 7 | G Melzer | 6 | 6$^3$ | 6 | | | | | | | | | |
| 7 | G Melzer | 6 | 7$^9$ | | | | | | | | | | | 1 | A Menéndez Maceiras | 7$^7$ | 5 | 6 |
| 3 | R Ram | 6 | 6 | | | | | | | | | | | 5 | H Zeballos | 6$^3$ | 7 | 4 |
| | A van der Duim | 1 | 3 | | 3 | R Ram | 4 | 6 | 3 | | | | | | | | | |
| | D Nguyen | 6 | 6 | | | D Nguyen | 6 | 4 | 6 | | | | | | | | | |
| | Connor Smith | 3 | 2 | | | | | | | | D Nguyen | 2 | 3 | | | | | |
| Q | C Zampieri | 4 | 4 | | | | | | | 5 | H Zeballos | 6 | 6 | | | | | |
| | E Struvay | 6 | 6 | | | E Struvay | 1 | 2 | | | | | | | | | | |
| WC | T Hank | 5 | 2 | | 5 | H Zeballos | 6 | 6 | | | | | | | | | | |
| 5 | H Zeballos | 7 | 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 |
| 8 | C Buchanan | 6 | 6 | | | | | | | | | | | | | | | |
| Q | K King | 4 | 2 | | 8 | C Buchanan | 4 | 6 | 4 | | | | | | | | | |
| WC | Alan Núñez Aguilera | 3 | 2 | | Q | A El Mihdawy | 6 | 0 | 6 | | | | | | | | | |
| Q | A El Mihdawy | 6 | 6 | | | | | | | Q | A El Mihdawy | 3 | 4 | | | | | |
| SE | Henrique Cunha | 5 | 6 | 7$^7$ | | | | | | 4 | A Krajicek | 6 | 6 | | | | | |
| | G Escobar | 7 | 4 | 6$^5$ | SE | H Cunha | 4 | 4 | | | | | | | | | | |
| | M Arévalo | 6$^2$ | 2 | | 4 | A Krajicek | 6 | 6 | | | | | | | | | | |
| 4 | A Krajicek | 7$^7$ | 6 | | | | | | | | | | | | 4 | A Krajicek | 6 | 7$^7$ |
| 6 | M Przysiężny | 4 | 3 | | | | | | | | | | | | 2 | A Falla | 1 | 6$^3$ |
| Q | N Barrientos | 6 | 6 | | Q | N Barrientos | 2 | 2 | | | | | | | | | | |
| | R Olivo | 3 | 4 | | Alt | G Lapentti | 6 | 6 | | | | | | | | | | |
| Alt | G Lapentti | 6 | 6 | | | | | | | Alt | G Lapentti | 2 | 6 | 2 | | | | |
| | G Pella | 6 | 6 | | | | | | | 2 | A Falla | 6 | 3 | 6 | | | | |
| | A Molteni | 4 | 0 | | | G Pella | 3 | 3 | | | | | | | | | | |
| WC | Kevin Jack Carpenter | 4 | 1 | | 2 | A Falla | 6 | 6 | | | | | | | | | | |
| 2 | A Falla | 6 | 6 | | | | | | | | | | | | | | | |