# 2016 Torneo Internacional Challenger León – Singles

Austin Krajicek was the defending champion, but lost in the first round to Adrián Menéndez Maceiras.
Michael Berrer won the title, defeating João Souza 6–3, 6–2 in the final.

## Seeds

* Sam Groth (first round)
* Taylor Fritz (first round)
* Malek Jaziri (quarterfinals, retired)
* Yūichi Sugita (first round)
* Austin Krajicek (first round)
* Michael Berrer (champion)
* Stéphane Robert (first round)
* Tatsuma Ito (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 |
| 6 | Michael Berrer | 6 | 5 | 6 | | | | |
| Alt | Daniel Nguyen | 3 | 7 | 2 | | | | |
| Alt | Daniel Nguyen | 3 | 7 | 2 | 6 | Michael Berrer | 6 | 6 |
| | | | | | Alt | João Souza | 3 | 2 |
| Alt | João Souza | 7$^7$ | 6 | | Alt | João Souza | 3 | 2 |
| Q | Caio Zampieri | 6$^3$ | 4 | | | | | |

### 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 | Semifinals |
| 1 | S Groth | 6$^3$ | 6 | 4 | | | | | | | | | | | | | | | |
| | A Ghem | 7$^7$ | 2 | 6 | | A Ghem | 7 | 6 | | | | | | | | | | | |
| | A Falla | 6 | 4 | 7$^8$ | | A Falla | 5 | 4 | | | | | | | | | | | |
| SE | M Arévalo | 3 | 6 | 6$^6$ | | | | | | | A Ghem | 3 | 6 | 3 | | | | | |
| WC | L Gómez | 6 | 6 | | | | | | | 6 | M Berrer | 6 | 2 | 6 | | | | | |
| WC | Alejandro Moreno | 1 | 1 | | WC | L Gómez | 1 | 7 | 2 | | | | | | | | | | |
| | A Sarkissian | 6$^3$ | 5 | | 6 | M Berrer | 6 | 5 | 6 | | | | | | | | | | |
| 6 | M Berrer | 7$^7$ | 7 | | | | | | | | | | | | 6 | M Berrer | 6 | 5 | 6 |
| 4 | Y Sugita | 5 | 1 | | | | | | | | | | | | Alt | D Nguyen | 3 | 7 | 2 |
| SE | P Krstin | 7 | 6 | | SE | P Krstin | 1 | 2 | | | | | | | | | | | |
| Alt | P Cachin | 3 | 7$^7$ | 3 | Alt | D Nguyen | 6 | 6 | | | | | | | | | | | |
| Alt | D Nguyen | 6 | 6$^5$ | 6 | | | | | | Alt | D Nguyen | 6 | 6 | | | | | | |
| Q | Robin Staněk | 2 | 6 | 7$^7$ | | | | | | | A González | 2 | 1 | | | | | | |
| Q | E Gómez | 6 | 4 | 6$^3$ | Q | R Staněk | 3 | 1 | | | | | | | | | | | |
| | A González | 6 | 7 | | | A González | 6 | 6 | | | | | | | | | | | |
| 8 | T Ito | 4 | 5 | | | | | | | | | | | | | | | | |

### 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 |
| 7 | S Robert | 6 | 4 | 2 | | | | | | | | | | | | | | |
| | D Popko | 4 | 6 | 6 | | D Popko | 4 | 4 | | | | | | | | | | |
| Alt | J Jung | 1 | 6$^3$ | | Alt | J Souza | 6 | 6 | | | | | | | | | | |
| Alt | J Souza | 6 | 7$^7$ | | | | | | | Alt | J Souza | 4 | 7$^7$ | 5 | | | | |
| | N Milojević | 6 | 4 | 6$^7$ | | | | | | 3 | M Jaziri | 6 | 6$^1$ | 0$^r$ | | | | |
| Alt | M Safwat | 3 | 6 | 7$^9$ | Alt | M Safwat | 6 | 4 | 5 | | | | | | | | | |
| WC | H Hach Verdugo | 2 | 3 | | 3 | M Jaziri | 3 | 6 | 7 | | | | | | | | | |
| 3 | M Jaziri | 6 | 6 | | | | | | | | | | | | Alt | J Souza | 7$^7$ | 6 |
| 5 | A Krajicek | 4 | 4 | | | | | | | | | | | | Q | C Zampieri | 6$^3$ | 4 |
| | A Menéndez Maceiras | 6 | 6 | | | A Menéndez Maceiras | 6 | 6 | | | | | | | | | | |
| | H Laaksonen | 7 | 6 | | | H Laaksonen | 3 | 0 | | | | | | | | | | |
| WC | T Hank | 5 | 3 | | | | | | | | A Menéndez Maceiras | 6 | 4 | 4 | | | | |
| Q | C Zampieri | 6 | 6 | | | | | | | Q | C Zampieri | 2 | 6 | 6 | | | | |
| | J McGee | 4 | 4 | | Q | C Zampieri | 6 | 6 | | | | | | | | | | |
| Q | A Velotti | 6$^4$ | 6 | 7 | Q | A Velotti | 3 | 2 | | | | | | | | | | |
| 2 | T Fritz | 7$^7$ | 3 | 5 | | | | | | | | | | | | | | |