2018 Brasil Open

The 2018 Brasil Open was a tennis tournament played on indoor clay courts. It was the 18th edition of the Brasil Open, and part of the ATP World Tour 250 series of the 2018 ATP World Tour. It took place from February 26 through March 4, 2018, in São Paulo, Brazil.

Seeds

 * 1 Rankings as of February 19, 2018.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇧🇷 Thiago Monteiro
 * 🇫🇷 Corentin Moutet
 * 🇧🇷 Thiago Seyboth Wild

The following players received entry from the qualifying draw:
 * 🇧🇷 Guilherme Clezar
 * João Domingues
 * 🇦🇹 Sebastian Ofner
 * 🇦🇷 Renzo Olivo

Withdrawals

 * Before the tournament
 * 🇩🇪 Cedrik-Marcel Stebe → replaced by Gastão Elias
 * 🇨🇿 Jiří Veselý → replaced by 🇦🇷 Carlos Berlocq

Seeds

 * 1 Rankings as of February 19, 2018.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇧🇷 Thomaz Bellucci / 🇧🇷 André Sá
 * 🇫🇷 Dorian Descloix / 🇫🇷 Gaël Monfils

The following pairs received entry as alternates:
 * 🇧🇷 Pedro Bernardi / 🇧🇷 Thiago Monteiro
 * 🇧🇷 Fabrício Neis / 🇦🇷 Renzo Olivo

Withdrawals

 * Before the tournament
 * Nicolás Jarry
 * 🇦🇹 Gerald Melzer


 * During the tournament
 * Pablo Cuevas

Retirements

 * 🇧🇷 Fabrício Neis

Singles

 * 🇮🇹 Fabio Fognini def. Nicolás Jarry, 1–6, 6–1, 6–4

Doubles

 * 🇦🇷 Federico Delbonis / 🇦🇷 Máximo González def. Wesley Koolhof / 🇳🇿 Artem Sitak, 6–4, 6–2.