2018 Los Cabos Open
The 2018 Los Cabos Open 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 30 July through 5 August 2018.
Finals
Singles
- Fabio Fognini defeated Juan Martín del Potro, 6–4, 6–2
Doubles
- Marcelo Arévalo / Miguel Ángel Reyes-Varela defeated Taylor Fritz / Thanasi Kokkinakis, 6–4, 6–4
Singles main-draw entrants
Seeds
Other entrants
The following players received wildcards into the singles main draw:The following players received entry using a protected ranking into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
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