Stadium: Quadra Central Round: 25 Ground: Clay
| ITF Brazil F5 | 2018/10/16 13:00 | Rafael Saraiva v Joao Lucas Reis da Silva | 0-6,5-7 |
| ITF Brazil F5 | 2018/10/16 13:00 | Rafael Saraiva v Joao Lucas Reis da Silva | 0-6,5-7 |
| ITF Brazil F4 | 2017/11/25 13:00 | Asdrubal Gobernate v Rafael Saraiva | 7-6,4-6,6-3 |
| ITF Brazil F3 | 2017/11/21 15:35 | Caio Silva v Rafael Saraiva | 6-2,6-4 |
| 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 |
| ITF USA F25 | 2018/09/19 17:00 | Joao Lucas Reis da Silva v Korey Lovett | 6-3,3-6,5-7 |
| ITF USA F24 | 2018/09/12 16:30 | Joao Lucas Reis da Silva v Zachary Svajda | 3-6,4-6 |