Stadium: Quadra Central Round: 27 Ground: Clay
| ITF Brazil F7 | 2018/10/31 14:00 | Daniel Dutra Da Silva v Matheus P De Almeida | 3-6,4-6 |
| ITF Brazil F7 | 2018/10/29 12:00 | Matheus P De Almeida v Gustavo Heide | 6-4,6-3 |
| ITF Brazil F7 | 2018/10/28 15:00 | Matheus P De Almeida v Victor Pilla Helal Lopes De Oliveira | 6-0,7-6 |
| ITF Brazil F7 | 2018/10/27 12:00 | Matheus P De Almeida v Karl W W Mac-Leay | 6-2,6-1 |
| Challenger - Campinas | 2018/10/01 16:35 | Matheus P De Almeida v Andrea Collarini | 1-6,6-7 |
| ITF Bolivia F2 | 2018/09/20 20:30 | Matias Franco Descotte v Matheus P De Almeida | 6-3,6-2 |
| ITF Bolivia F2 | 2018/09/19 20:00 | Matheus P De Almeida v Franco Capalbo | 6-4,6-3 |
| ITF Bolivia F2 | 2018/09/18 23:30 | Matheus P De Almeida v Agustin E C Lorberg | 6-2,6-2 |
| ITF Brazil F7 | 2018/10/31 16:00 | Aaron Schmid v Joao Lucas Reis da Silva | 0-6,2-6 |
| ITF Brazil F7 | 2018/10/29 13:30 | Rafael Saraiva v Joao Lucas Reis da Silva | 6-7,3-6 |
| ITF Brazil F6 | 2018/10/22 16:40 | Joao Lucas Reis da Silva v Maximiliano Estevez | 5-7,1-6 |
| ITF Brazil F5 | 2018/10/19 16:10 | Daniel Dutra Da Silva v Joao Lucas Reis da Silva | 7-5,6-2 |
| ITF Brazil F5 | 2018/10/17 14:45 | Facundo Mena v Joao Lucas Reis da Silva | 6-4,0-6,6-7 |
| ITF Brazil F5 | 2018/10/16 13:00 | Rafael Saraiva v Joao Lucas Reis da Silva | 0-6,5-7 |
| ITF USA F26 | 2018/09/27 17:00 | Joao Lucas Reis da Silva v Michael Shabaz | 2-6,2-6 |
| ITF USA F26 | 2018/09/26 18:00 | Joao Lucas Reis da Silva v Stefan Dostanic | 6-4,6-2 |