Stadium: Court 1 Round: 25 Ground: Clay
| 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 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 |
| ITF Latvia F1 | 2018/08/01 11:00 | Robertas Vrzesinski v Joao Lucas Reis da Silva | 6-4,6-1 |
| ITF Latvia F1 | 2018/07/30 09:15 | Santiago Besada v Joao Lucas Reis da Silva | 2-6,4-6 |
| ITF Lithuania F1 | 2018/07/24 13:25 | Roberts Grinvalds v Joao Lucas Reis da Silva | 4-6,6-4,7-6 |
| ITF Estonia F1 | 2018/07/20 10:30 | Joao Lucas Reis da Silva v Dragos Nicolae Madaras | 3-6,2-6 |