Stadium: Court 3 Round: 27 Ground: Clay
| ITF Brazil F1 | 2018/04/27 15:30 | Daniel Dutra Da Silva v Joao Lucas Reis da Silva | 6-4,6-2 |
| ITF Brazil F5 | 2018/10/18 13:00 | Daniel Dutra Da Silva v Francisco Comesana | 6-4,6-4 |
| ITF Brazil F5 | 2018/10/15 16:30 | Daniel Dutra Da Silva v Christian Oliveira | 6-4,6-2 |
| Challenger Campinas | 2018/09/29 18:40 | Joao Pedro Sorgi v Daniel Dutra Da Silva | 6-4,6-0 |
| Challenger Como | 2018/08/26 08:30 | Daniel Dutra Da Silva v Miljan Zekic | 6-7,4-6 |
| Challenger Como | 2018/08/25 09:45 | Daniel Dutra Da Silva v Giovanni Fonio | 6-0,6-4 |
| Challenger Cordenons | 2018/08/13 12:00 | Daniel Dutra Da Silva v Juan Pablo Ficovich | 6-3,6-4 |
| Challenger Cordenons | 2018/08/12 16:15 | Daniel Dutra Da Silva v Gonzalo Villanueva | 7-5,6-4 |
| Challenger Cordenons | 2018/08/11 14:35 | Daniel Dutra Da Silva v Davide Galoppini | 6-3,6-3 |
| 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 |
| 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 |