Champ: | Fabio Fognini |
Runner: | Nicolás Jarry |
Score: | 1–6, 6–1, 6–4 |
Draw: | 28 (4 / 3) |
Seeds: | 8 |
Edition: | 18 |
Type: | singles doubles |
See main article: 2018 Brasil Open. Pablo Cuevas was the three-time defending champion, but lost in the semifinals to Fabio Fognini.
Fognini went on to win the title, defeating Nicolás Jarry in the final, 1–6, 6–1, 6–4.
The top four seeds receive a bye into the second round.