2018 Los Cabos Open

The 2018 Los Cabos Open (also known as the Abierto Mexicano de Tenis Mifel presentado por Cinemex for sponsorship reasons) was an ATP tennis tournament played on outdoor hard courts. It was the 3rd edition of the Los Cabos Open, and part of the ATP World Tour 250 series of the 2018 ATP World Tour. It took place in Los Cabos, Mexico from July 30 through August 5, 2018.

Seeds

 * Rankings are as of July 23, 2018.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇺🇸 Ernesto Escobedo
 * 🇲🇽 Lucas Gómez
 * 🇦🇺 Thanasi Kokkinakis

The following players received entry using a protected ranking into the singles main draw:
 * 🇧🇾 Egor Gerasimov
 * 🇯🇵 Yoshihito Nishioka

The following players received entry from the qualifying draw:
 * 🇺🇸 Marcos Giron
 * 🇮🇳 Prajnesh Gunneswaran
 * Takanyi Garanganga
 * 🇪🇬 Mohamed Safwat

The following player received entry as a lucky loser:
 * 🇨🇴 Daniel Elahi Galán

Withdrawals

 * Before the tournament
 * 🇦🇺 Matthew Ebden → replaced by Marcelo Arévalo
 * 🇺🇸 Ryan Harrison → replaced by 🇨🇴 Daniel Elahi Galán
 * 🇷🇸 Filip Krajinović → replaced by 🇧🇾 Egor Gerasimov
 * 🇦🇺 John Millman → replaced by 🇦🇺 Bernard Tomic
 * 🇺🇸 Jack Sock → replaced by 🇫🇷 Quentin Halys

Seeds

 * Rankings are as of July 23, 2018.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇲🇽 Lucas Gómez / 🇲🇽 Luis Patiño
 * 🇲🇽 Manuel Sánchez / 🇦🇺 Bernard Tomic

Singles

 * 🇮🇹 Fabio Fognini def. 🇦🇷 Juan Martín del Potro, 6–4, 6–2

Doubles

 * Marcelo Arévalo / 🇲🇽 Miguel Ángel Reyes-Varela def. 🇺🇸 Taylor Fritz / 🇦🇺 Thanasi Kokkinakis, 6–4, 6–4