Sam Querrey Samuel Austin Querrey ( ; born October 7, 1987) is an American professional pickleball player and former tennis player. He reached a career-high singles ranking of world No. 11 achieved on February 26, 2018, and won ten ATP singles titles. Known ...

was the defending champion, but lost in the second round to

Egor Gerasimov Yegor Alekseyevich Gerasimov () or Yahor Alyakseyevich Herasimaŭ (; born 11 November 1992 in Minsk) is a Belarusian professional tennis player. He has a career high ATP singles ranking of world No. 65, which he achieved on 24 February 2020. He ...

Fabio Fognini Fabio Fognini (; born 24 May 1987) is an Italian professional tennis player. He has a career-high Association of Tennis Professionals, ATP ranking of world No. 9 achieved on 15 July 2019. Fognini's most successful surface is Clay court#Red clay, ...

won the title, defeating

Juan Martín del Potro Juan Martín del Potro (; born 23 September 1988) is an Argentine former professional tennis player. He was ranked world No. 3 in men's singles by the Association of Tennis Professionals (ATP), in August 2018. Del Potro won 22 ATP Tour-level sing ...

in the final, 6–4, 6–2.

Seeds

The top four

seeds In botany, a seed is a plant structure containing an embryo and stored nutrients in a protective coat called a ''testa''. More generally, the term "seed" means anything that can be sown, which may include seed and husk or tuber. Seeds are the ...

received a bye into the second round.

Draw

Finals

Top half

Bottom half

Qualifying

Seeds

Qualifiers

Lucky loser

Daniel Elahi Galán Daniel Elahi Galán Riveros (born 18 June 1996 in Bucaramanga) is a Colombian professional tennis player. He reached a career-high ATP singles ranking of No. 56 on 17 July 2023. He also has a career-high doubles ranking of No. 305 achieved on 26 ...

Qualifying draw

First qualifier

Second qualifier

Third qualifier

Fourth qualifier

References

External links

Main draw

Qualifying draw
{{DEFAULTSORT:Los Cabos Open - Singles, 2018 2018 ATP World Tour

2018 Singles Eighteen or 18 may refer to: * 18 (number) * One of the years 18 BC, AD 18, 1918, 2018 Film, television and entertainment * ''18'' (film), a 1993 Taiwanese experimental film based on the short story ''God's Dice'' * ''Eighteen'' (film), a 2 ...