# 2018 CDMX Open – Singles

This was the first edition of the tournament.
Juan Ignacio Londero won the title after defeating Roberto Quiroz 6–1, 6–3 in the final.

## Seeds

* Yannick Hanfmann (first round)
* Thiago Monteiro (second round)
* Carlos Berlocq (second round)
* Adrián Menéndez Maceiras (quarterfinals)
* Mats Moraing (second round)
* Víctor Estrella Burgos (second round)
* Marcelo Arévalo (second round)
* Peđa Krstin (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 |
| | Roberto Quiroz | 3 | 6 | 6 | | | | |
| | Facundo Argüello | 6 | 0 | 3 | | | | |
| | Facundo Argüello | 6 | 0 | 3 | | Roberto Quiroz | 1 | 3 |
| | | | | | Q | Juan Ignacio Londero | 6 | 6 |
| | Daniel Elahi Galán | 4 | 7 | 4 | Q | Juan Ignacio Londero | 6 | 6 |
| Q | Juan Ignacio Londero | 6 | 5 | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | Y Hanfmann | 2 | 3 | | | | | | | | | | | | | | |
| | J Clarke | 6 | 6 | | | J Clarke | 4 | 4 | | | | | | | | | |
| Q | A Basso | 6$^2$ | 6 | 6 | Q | A Basso | 6 | 6 | | | | | | | | | |
| | D Muñoz de la Nava | 7$^7$ | 4 | 1 | | | | | | Q | A Basso | 5 | 6$^4$ | | | | |
| | R Quiroz | 6 | 6 | | | | | | | | R Quiroz | 7 | 7$^7$ | | | | |
| | A Šetkić | 1 | 3 | | | R Quiroz | 4 | 6 | 6 | | | | | | | | |
| | D Petrović | 3 | 6 | 4 | 8 | P Krstin | 6 | 1 | 4 | | | | | | | | |
| 8 | P Krstin | 6 | 1 | 6 | | | | | | | | | | R Quiroz | 3 | 6 | 6 |
| 3/SE | C Berlocq | 3 | 6 | 6 | | | | | | | | | | F Argüello | 6 | 0 | 3 |
| WC | S Korda | 6 | 1 | 4 | 3/SE | C Berlocq | 3 | 4 | | | | | | | | | |
| | I Nedelko | 6 | 3 | 2 | | J Choinski | 6 | 6 | | | | | | | | | |
| | J Choinski | 3 | 6 | 6 | | | | | | | J Choinski | 5 | 2 | | | | |
| WC | L Gómez | 3 | 4 | | | | | | | | F Argüello | 7 | 6 | | | | |
| | F Argüello | 6 | 6 | | | F Argüello | 2 | 6 | 6 | | | | | | | | |
| | S Giraldo | 4 | 7 | 2 | 5 | M Moraing | 6 | 4 | 4 | | | | | | | | |
| 5 | M Moraing | 6 | 5 | 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 |
| 6 | V Estrella Burgos | 6 | 4 | 7$^7$ | | | | | | | | | | | | | | |
| | F Bagnis | 4 | 6 | 6$^3$ | 6 | V Estrella Burgos | 6 | 6$^5$ | 2 | | | | | | | | | |
| | DE Galán | 6 | 6 | | | DE Galán | 4 | 7$^7$ | 6 | | | | | | | | | |
| | B Zapata Miralles | 3 | 4 | | | | | | | | DE Galán | 7$^7$ | 6 | | | | | |
| | J Souza | 7$^7$ | 7 | | | | | | | 4 | A Menéndez Maceiras | 6$^5$ | 4 | | | | | |
| | G Clezar | 6$^2$ | 5 | | | J Souza | 4 | 6 | 3 | | | | | | | | | |
| | Christopher Heyman | 6 | 5 | 2 | 4 | A Menéndez Maceiras | 6 | 2 | 6 | | | | | | | | | |
| 4 | A Menéndez Maceiras | 1 | 7 | 6 | | | | | | | | | | | DE Galán | 4 | 7 | 4 |
| 7 | M Arévalo | 6 | 6 | | | | | | | | | | | Q | JI Londero | 6 | 5 | 6 |
| WC | L Patiño | 3 | 2 | | 7 | M Arévalo | 7$^7$ | 6$^8$ | 4 | | | | | | | | | |
| Q | J Hernández-Fernández | 6 | 3 | 6 | Q | J Hernández-Fernández | 6$^3$ | 7$^{10}$ | 6 | | | | | | | | | |
| | B Mousley | 2 | 6 | 3 | | | | | | Q | J Hernández-Fernández | 5 | 2 | | | | | |
| Q | JI Londero | 7 | 6 | | | | | | | Q | JI Londero | 7 | 6 | | | | | |
| Q | A Krajicek | 5 | 1 | | Q | JI Londero | 6 | 6 | | | | | | | | | | |
| WC | M Sánchez | 3 | 3 | | 2 | T Monteiro | 4 | 1 | | | | | | | | | | |
| 2 | T Monteiro | 6 | 6 | | | | | | | | | | | | | | | |