Rogério Dutra Silva Rogério Dutra da Silva (; born February 3, 1984) is a former Brazilian professional tennis player. Dutra Silva had a career high ATP singles ranking of 63 achieved on July 24, 2017 and a career high ATP doubles ranking of 84 achieved on Febru ...

was the defending champion but lost in the quarterfinals to

Carlos Gómez-Herrera Carlos Gómez-Herrera (; born 30 April 1990) is a Spanish tennis player. Career Gómez-Herrera has a career high ATP singles ranking of World No. 268 achieved on 7 May 2018. He has a career high ATP doubles ranking of World No. 195 achieved on ...

Marco Cecchinato Marco Cecchinato (; born 30 September 1992) is an Italian professional tennis player. He has a career-high ATP singles ranking of World No. 16 reached on 25 February 2019. On 29 April 2018, he won his first ATP World Tour title at the 2018 Hunga ...

won the title after defeating Gómez-Herrera 1–6, 6–1, 6–1 in the final.

Seeds

Draw

Finals

Top half

Bottom half

References

Main DrawQualifying Draw
{{DEFAULTSORT:2018 Challenger ATP Cachantun Cup - Singles Challenger ATP Cachantún Cup - Singles

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 ...