# 2019 Torneo Internacional Challenger León – Singles

Christopher Eubanks was the defending champion but lost in the second round to Liam Broady.
Blaž Rola won the title after defeating Broady 6–4, 4–6, 6–3 in the final.

## Seeds

All seeds receive a bye into the second round.
* Alexander Bublik (semifinals, retired)
* Adrián Menéndez Maceiras (third round)
* Christopher Eubanks (second round)
* Dustin Brown (second round)
* Sebastian Ofner (quarterfinals)
* Mirza Bašić (third round)
* James Ward (semifinals)
* Mohamed Safwat (third round)
* Peđa Krstin (third round)
* Donald Young (second round)
* Darian King (third round)
* Roberto Quiroz (quarterfinals)
* John-Patrick Smith (second round)
* Blaž Rola (champion)
* Lucas Miedler (third round)
* Marcelo Arévalo (quarterfinals)

## 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

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 1 | Alexander Bublik | 6 | 7$^7$ | | | | | | | | | | | |
| 12 | Roberto Quiroz | 4 | 6$^3$ | | | | | | | | | | | |
| 12 | Roberto Quiroz | 4 | 6$^3$ | | 1 | Alexander Bublik | 2 | 0$^r$ | | | | | | |
| | | | | | | Liam Broady | 6 | 0 | | | | | | |
| | Liam Broady | 7 | 4 | 6 | | Liam Broady | 6 | 0 | | | | | | |
| 5 | Sebastian Ofner | 5 | 6 | 3 | | | | | | | | | | |
| 5 | Sebastian Ofner | 5 | 6 | 3 | | | | | | | Liam Broady | 4 | 6 | 3 |
| | | | | | | | | | | 14 | Blaž Rola | 6 | 4 | 6 |
| | Gonzalo Escobar | 6$^7$ | 3 | | | | | | | | | | | | 14 | Blaž Rola | 6 | 4 | 6 |
| 14 | Blaž Rola | 7$^9$ | 6 | | | | | | | | | | | |
| 14 | Blaž Rola | 7$^9$ | 6 | | 14 | Blaž Rola | 6$^5$ | 6 | 7$^9$ | | | | | |
| | | | | | 7 | James Ward | 7$^7$ | 3 | 6$^7$ | | | | | |
| 7 | James Ward | 6 | 6 | | 7 | James Ward | 7$^7$ | 3 | 6$^7$ | | | | | |
| 16 | Marcelo Arévalo | 3 | 4 | | | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | 1 | A Bublik | 7$^{16}$ | 6 | | | | | | | | | | |
| | Mi Redlicki | 2 | 6$^r$ | | S Griekspoor | 6$^{14}$ | 3 | | | | | | | | | | |
| | S Griekspoor | 6 | 6 | | | | | | 1 | A Bublik | 7$^7$ | 7 | | | | | |
| | D Petrović | 6 | 6 | | | | | | | D Petrović | 6$^0$ | 5 | | | | | |
| LL | C Ugo Carabelli | 2 | 2 | | D Petrović | 6 | 6 | | | | | | | | | | |
| | | | | 13 | J-P Smith | 3 | 4 | | | | | | | | | | |
| | | | | | | | | | | | | | | 1 | A Bublik | 6 | 7$^7$ |
| | | | | | | | | | | | | | | 12 | R Quiroz | 4 | 6$^3$ |
| | | | | 12 | R Quiroz | 3 | 7 | 6 | | | | | | | | | |
| WC | L Gómez | 7$^7$ | 6 | WC | L Gómez | 6 | 5 | 3 | | | | | | | | | |
| Q | Felipe Mantilla | 6$^5$ | 4 | | | | | | 12 | R Quiroz | 5 | 6 | 6 | | | | |
| WC | Milledge Cossu | 2 | 2 | | | | | | 6 | M Bašić | 7 | 3 | 4 | | | | |
| Q | Ma Redlicki | 6 | 6 | Q | Ma Redlicki | 2 | 5 | | | | | | | | | | |
| | | | | 6 | M Bašić | 6 | 7 | | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | 3 | C Eubanks | 6$^5$ | 6 | 4 | | | | | | | | | | |
| | L Broady | 6 | 6 | | L Broady | 7$^7$ | 2 | 6 | | | | | | | | | | |
| | R Olivo | 2 | 3 | | | | | | | L Broady | 1 | 7$^7$ | 6 | | | | | |
| ITF | J Menezes | 3 | 4 | | | | | | 15 | L Miedler | 6 | 6$^5$ | 3 | | | | | |
| ITF | A Artuñedo | 6 | 6 | ITF | A Artuñedo | 3 | 3 | | | | | | | | | | | |
| | | | | 15 | L Miedler | 6 | 6 | | | | | | | | | | | |
| | | | | | | | | | | | | | | | L Broady | 7 | 4 | 6 |
| | | | | | | | | | | | | | | 5 | S Ofner | 5 | 6 | 3 |
| | | | | 9 | P Krstin | 7$^7$ | 6 | | | | | | | | | | | |
| | R Ortega Olmedo | 6 | 6 | | R Ortega Olmedo | 6$^4$ | 3 | | | | | | | | | | | |
| | Y Takahashi | 4 | 4 | | | | | | 9 | P Krstin | 6 | 4 | 3 | | | | | |
| PR | C Gómez-Herrera | 6 | 6 | | | | | | 5 | S Ofner | 2 | 6 | 6 | | | | | |
| WC | G López Villaseñor | 4 | 3 | PR | C Gómez-Herrera | 2 | 6$^6$ | | | | | | | | | | | |
| | | | | 5 | S Ofner | 6 | 7$^8$ | | | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 8 | M Safwat | 6$^4$ | 6 | 6 | | | | | | | | | |
| | V Durasovic | 6$^2$ | 4 | | | B Gojo | 7$^7$ | 1 | 4 | | | | | | | | | |
| | B Gojo | 7$^7$ | 6 | | | | | | | 8 | M Safwat | 7 | 4 | 3 | | | | |
| | G Escobar | 6$^5$ | 7$^7$ | 6 | | | | | | | G Escobar | 5 | 6 | 6 | | | | |
| | K King | 7$^7$ | 6$^5$ | 2 | | G Escobar | 6 | 7 | | | | | | | | | | |
| | | | | | 10 | D Young | 3 | 5 | | | | | | | | | | |
| | | | | | | | | | | | | | | | | G Escobar | 6$^7$ | 3 |
| | | | | | | | | | | | | | | | 14 | B Rola | 7$^9$ | 6 |
| | | | | | 14 | B Rola | 7 | 6 | | | | | | | | | | |
| | V Estrella Burgos | 6$^3$ | 2 | | | M-A Hüsler | 5 | 3 | | | | | | | | | | |
| | M-A Hüsler | 7$^7$ | 6 | | | | | | | 14 | B Rola | 6 | 6 | | | | | |
| ITF | M Guinard | 6 | 6 | | | | | | | ITF | M Guinard | 2 | 1 | | | | | |
| | A Pavić | 4 | 2 | | ITF | M Guinard | 6 | 6 | | | | | | | | | | |
| | | | | | 4 | D Brown | 4 | 2 | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 7 | J Ward | 6 | 6 | | | | | | | | | |
| | MF Descotte | 3 | 2 | | ITF | B Crepatte | 3 | 4 | | | | | | | | | |
| ITF | Baptiste Crepatte | 6 | 6 | | | | | | | 7 | J Ward | 6 | 6 | | | | |
| ITF | S Mansouri | 6 | 7$^7$ | | | | | | | 11 | D King | 1 | 4 | | | | |
| | E Escobedo | 4 | 6$^3$ | | ITF | S Mansouri | 3 | 2 | | | | | | | | | |
| | | | | | 11 | D King | 6 | 6 | | | | | | | | | |
| | | | | | | | | | | | | | | 7 | J Ward | 6 | 6 |
| | | | | | | | | | | | | | | 16 | M Arévalo | 3 | 4 |
| | | | | | 16 | M Arévalo | 6$^3$ | 7 | 7$^7$ | | | | | | | | |
| WC | L Patiño | 1 | 2 | | | A Sarkissian | 7$^7$ | 5 | 6$^4$ | | | | | | | | |
| | A Sarkissian | 6 | 6 | | | | | | | 16 | M Arévalo | 6 | 7 | | | | |
| | T Seyboth Wild | 6 | 3 | 7$^7$ | | | | | | 2 | A Menéndez Maceiras | 3 | 5 | | | | |
| | E King | 3 | 6 | 6$^4$ | | T Seyboth Wild | 3 | 7 | 4 | | | | | | | | |
| | | | | | 2 | A Menéndez Maceiras | 6 | 5 | 6 | | | | | | | | |