Alexandr Dolgopolov Alexandr Oleksandrovych Dolgopolov (born 7 November 1988), formerly known as Oleksandr Dolgopolov Jr., is a Ukrainian retired professional tennis player. He changed his forename spelling to the current form in May 2010. Dolgopolov reached the qu ...

was the defending champion, but withdrew before the tournament began.

Dominic Thiem Dominic Thiem (; born 3 September 1993) is an Austrian former professional tennis player. He was ranked world No. 3 in singles by the Association of Tennis Professionals (ATP), which he first achieved in March 2020. Thiem won 17 ATP Tour-level s ...

won the title, defeating

Aljaž Bedene Aljaž Bedene (born 18 July 1989) is a Slovenian former professional tennis player. He was ranked as high as No. 43 in singles by the Association of Tennis Professionals (ATP), which he achieved in February 2018. He reached four singles finals ...

in the final, 6–2, 6–4.

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 ...

receive a bye into the second round.

Draw

Finals

Top half

Bottom half

Qualifying

Seeds

Qualifiers

Lucky losers

Gastão Elias Gastão José Ministro Elias (; born 24 November 1990) is a Portuguese professional tennis player, who competes on the ATP Challenger Tour. In October 2016, he reached a career-high singles ranking of world No. 57 to become the third highest-ran ...

Qualifying draw

First qualifier

Second qualifier

Third qualifier

Fourth qualifier

External links

Main draw

Qualifying draw
{{DEFAULTSORT:Argentina 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 ...