| ITF Portugal F18 | 2018/09/26 11:05 | Фред Гил v Sao Thiago, Igor | 6-7,6-1,6-1 |
| ITF Portugal F18 | 2018/09/24 10:55 | Жуан Граса v Sao Thiago, Igor | 5-7,1-6 |
| ITF Portugal F18 | 2018/09/23 13:00 | Illia Stoliar v Sao Thiago, Igor | 6-4,3-6,3-6 |
| ITF Portugal F17 | 2018/09/17 14:45 | Максим Тихомиров v Sao Thiago, Igor | 6-7,6-2,6-3 |
| ITF Brazil F4 Qual | 2018/05/14 14:50 | Энрике Бого v Sao Thiago, Igor | 6-1,2-6,6-3 |
| ITF Brazil F4 Qual | 2018/05/13 12:00 | Франко Ронкаделли v Sao Thiago, Igor | 5-7,3-6 |
| ITF Brazil F3 | 2018/05/07 12:30 | Ассунсао Гарла, Фелипе v Sao Thiago, Igor | 6-4,4-6,7-5 |
| ITF Brazil F3 | 2018/05/06 12:30 | Жуан М Нусдео v Sao Thiago, Igor | 3-6,3-6 |
| ITF Peru F2 | 2018/09/29 14:30 | Ferreira, Joao v Хавьер Арайа | 6-1,6-1 |
| ITF Peru F1 | 2018/09/25 15:00 | Ferreira, Joao v Мариано Кестельбойм | 6-2,2-6,4-6 |
| ITF Peru F1 | 2018/09/23 15:30 | Алан Постай v Ferreira, Joao | 4-6,3-6 |
| ITF Portugal F18 | 2018/09/23 10:30 | Рафаэль И. Луке v Ferreira, Joao | 6-1,6-1 |
| ITF Peru F1 | 2018/09/22 14:30 | Ferreira, Joao v Gonzalez Huerta, Ivan Rodrigo | 6-3,6-3 |
| ITF Portugal F12 Qual | 2018/07/21 09:00 | Saez-Royuela Ariza, Alvaro v Ferreira, Joao | 6-4,6-0 |
| ITF Portugal F11 Qual | 2018/06/30 08:30 | Ferreira, Joao v Vejnovic, Marko | 1-6,1-6 |
| ITF Portugal F10 | 2018/06/23 12:00 | Ferreira, Joao v Fernandes, Tiago Rodrigo | 2-6,6-7 |