Stadium: Court 2 Round: 62 Ground: Hardcourt outdoor
| ITF Portugal F11 Qual | 2018/06/30 08:30 | Da Silva, Gabriel Ciro v Kros, Jason | 7-5,6-7,7-5 |
| ITF Portugal F10 | 2018/06/25 09:30 | Da Silva, Gabriel Ciro v Graziani, Edoardo | 6-7,3-6 |
| ITF Portugal F10 | 2018/06/24 09:30 | Da Silva, Gabriel Ciro v Micevski, David | 7-6,6-2 |
| ITF Brazil F4 | 2018/05/17 15:00 | Matos, Rafael v Da Silva, Gabriel Ciro | 6-2,6-1 |
| ITF Brazil F4 | 2018/05/15 14:25 | Gabriel Decamps v Da Silva, Gabriel Ciro | 4-6,4-6 |
| ITF Brazil F4 Qual | 2018/05/14 15:30 | Da Silva, Gabriel Ciro v Matos, Diego | 6-3,6-2 |
| ITF Brazil F3 | 2018/05/07 12:30 | Da Silva, Gabriel Ciro v Oliveira, Cristian | 6-7,4-6 |
| ITF Brazil F2 | 2018/04/29 17:30 | Zaidman, Nicolas v Da Silva, Gabriel Ciro | 6-3,7-5 |
| ITF Portugal F8 Qual | 2018/04/16 16:05 | Prechtel, Sebastian v Alves, Simao | 6-2,5-7,6-4 |
| ITF Portugal F8 Qual | 2018/04/15 11:30 | Alves, Simao v Moura, Hugo | 6-2,6-1 |
| ITF Portugal F7 Qual | 2018/04/08 19:00 | Okala, Jules v Alves, Simao | 6-2,6-3 |
| ITF Portugal F7 Qual | 2018/04/07 19:00 | Alves, Simao v Vide, Pedro | 6-2,6-0 |
| ITF Portugal F5 Qual | 2018/03/19 10:00 | Alves, Simao v Leote Prata, Martim | 1-6,3-6 |
| ITF Portugal F5 Qual | 2018/03/18 12:30 | Alves, Simao v Muzzi, Felipe | 6-4,6-3 |
| Portugal F4, Singles Qualifying | 2018/03/11 11:30 | Moura, Hugo v Alves, Simao | 2-6,0-6 |
| Portugal F4, Singles Qualifying | 2018/03/11 11:30 | Yann Marti v Alves, Simao | 6-0,6-1 |