# 2018 Jalisco Open – Singles

Mirza Bašić was the defending champion but chose not to defend his title.
Marcelo Arévalo won the title after defeating Christopher Eubanks 6–4, 5–7, 7–6$^{(7–4)}$ in the final.

## Seeds

* Adrián Menéndez Maceiras (second round)
* Mats Moraing (quarterfinals)
* Dennis Novikov (first round)
* Filip Peliwo (second round)
* Kevin King (first round)
* Marcelo Arévalo (champion)
* Víctor Estrella Burgos (second round)
* Darian King (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

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| | Christopher Eubanks | 6 | 7$^7$ | | | | | |
| | Peđa Krstin | 2 | 6$^5$ | | | | | |
| | Peđa Krstin | 2 | 6$^5$ | | Christopher Eubanks | 4 | 7 | 6$^4$ |
| | | | | 6 | Marcelo Arévalo | 6 | 5 | 7$^7$ |
| 6 | Marcelo Arévalo | 6 | 2 | 6 | Marcelo Arévalo | 6 | 5 | 7$^7$ |
| | Brayden Schnur | 3 | 0$^r$ | | | | | |

### 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 |
| 1 | A Menéndez Maceiras | 6$^5$ | 6 | 7 | | | | | | | | | | | | | |
| | B Mousley | 7$^7$ | 2 | 5 | 1 | A Menéndez Maceiras | 2 | 5 | | | | | | | | | |
| | D Petrović | 6 | 7 | | | D Petrović | 6 | 7 | | | | | | | | | |
| WC | T Hank | 4 | 5 | | | | | | | | D Petrović | 4 | 4 | | | | |
| WC | G López Villaseñor | 1 | 6 | 6$^5$ | | | | | | | C Eubanks | 6 | 6 | | | | |
| | C Eubanks | 6 | 3 | 7$^7$ | | C Eubanks | 7$^7$ | 7$^8$ | | | | | | | | | |
| | A Šetkić | 4 | 2 | | 7 | V Estrella Burgos | 6$^5$ | 6$^6$ | | | | | | | | | |
| 7 | V Estrella Burgos | 6 | 6 | | | | | | | | | | | | C Eubanks | 6 | 7$^7$ |
| 3 | D Novikov | 6$^3$ | 3 | | | | | | | | | | | | P Krstin | 2 | 6$^5$ |
| | P Krstin | 7$^7$ | 6 | | | P Krstin | 6 | 6 | | | | | | | | | |
| Q | J Ward | 4 | 7$^{10}$ | 3 | WC | M Sánchez | 3 | 1 | | | | | | | | | |
| WC | M Sánchez | 6 | 6$^8$ | 6 | | | | | | | P Krstin | 6 | 1 | 6 | | | |
| Alt | A Pavić | 7 | 5 | 6 | | | | | | 8 | D King | 2 | 6 | 2 | | | |
| | E Leshem | 5 | 7 | 3 | Alt | A Pavić | 3 | 6 | 4 | | | | | | | | |
| | R Quiroz | 6 | 3 | 3 | 8 | D King | 6 | 2 | 6 | | | | | | | | |
| 8 | D King | 3 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | M Arévalo | 6 | 6 | | | | | | | | | | | | | | | |
| Q | F Gaio | 1 | 4 | | 6 | M Arévalo | 6 | 6 | | | | | | | | | | |
| | Christopher Heyman | 4 | 6$^5$ | | | A Sarkissian | 3 | 3 | | | | | | | | | | |
| | A Sarkissian | 6 | 7$^7$ | | | | | | | 6 | M Arévalo | 7$^7$ | 3 | 6 | | | | |
| | J-P Smith | 6 | 6$^5$ | 6 | | | | | | | J-P Smith | 6$^4$ | 6 | 3 | | | | |
| | DE Galán | 2 | 7$^7$ | 1 | | J-P Smith | 3 | 6 | 6 | | | | | | | | | |
| WC | L Patiño | 4 | 6$^7$ | | 4 | F Peliwo | 6 | 1 | 2 | | | | | | | | | |
| 4 | F Peliwo | 6 | 7$^9$ | | | | | | | | | | | | 6 | M Arévalo | 6 | 2 |
| 5 | K King | 6 | 3 | 3 | | | | | | | | | | | | B Schnur | 3 | 0$^r$ |
| | B Schnur | 2 | 6 | 6 | | B Schnur | 7 | 4 | 7$^7$ | | | | | | | | | |
| | S Giraldo | 6 | 3 | 1$^r$ | Alt | J Hernández-Fernández | 5 | 6 | 6$^5$ | | | | | | | | | |
| Alt | J Hernández-Fernández | 2 | 6 | 4 | | | | | | | B Schnur | 6 | 7$^7$ | | | | | |
| Q | J Souza | 6 | 3 | 5 | | | | | | 2 | M Moraing | 3 | 6$^4$ | | | | | |
| Q | G Escobar | 2 | 6 | 7 | Q | G Escobar | 6 | 5 | 2 | | | | | | | | | |
| | B Zapata Miralles | 1 | 6$^1$ | | 2 | M Moraing | 2 | 7 | 6 | | | | | | | | | |
| 2 | M Moraing | 6 | 7$^7$ | | | | | | | | | | | | | | | |