Round: 62 Ground: Hardcourt outdoor
| ITF - Portugal F11 - Qualifikation | 2017/07/08 10:30 | Tiago Cacao v Diogo Lourenco | 5-7,7-5,6-3 |
| ITF - Portugal F9 | 2017/06/24 08:30 | Maxime Tchoutakian v Diogo Lourenco | 6-1,6-4 |
| ITF - Portugal F8 | 2017/06/20 10:35 | Diogo Lourenco v Alberto Romero De Avila Senise | 4-6,1-6 |
| Challenger - Lissabon - Qualifikation | 2017/06/10 14:30 | Diogo Lourenco v Gabor Borsos | 3-6,1-6 |
| ITF - Spanien F16 - Qualifikation | 2017/06/03 08:00 | Diogo Lourenco v Grayson M. Goldin | 0-6,2-6 |
| ITF - Portugal F6 | 2017/04/09 12:30 | Diogo Lourenco v Maciej Rajski | 3-6,2-6 |
| ITF - Portugal F5 | 2017/04/01 14:00 | Diogo Lourenco v Alexey Prokopchuk | 2-6,2-6 |
| ITF - Portugal F4 | 2017/03/27 13:00 | Francisco Cabral v Diogo Lourenco | 7-6,7-6 |
| ITF - Portugal F11 - Qualifikation | 2017/07/09 10:30 | Arthur Weber v Afonso Portugal | 6-1,6-0 |
| ITF - Portugal F11 - Qualifikation | 2017/07/08 13:30 | Enric Guaita-Pais v Afonso Portugal | 2-6,3-6 |
| ITF - Portugal F10 | 2017/07/01 09:00 | Afonso Portugal v Pedro Gabriel Rodrigues | 5-7,6-7 |
| ITF - Portugal F9 | 2017/06/26 10:30 | Benjamin Hannestad v Afonso Portugal | 6-3,6-1 |
| ITF - Portugal F9 | 2017/06/24 08:30 | Afonso Portugal v Alberto Berbegal Moreno | 2-6,6-4,6-2 |
| ITF - Portugal F8 - Qualifikation | 2017/06/18 10:00 | Alafia Ayeni v Afonso Portugal | 6-4,6-3 |
| ITF - Portugal F8 - Qualifikation | 2017/06/17 08:00 | Afonso Portugal v Philip Sikman | 6-1,3-6,6-1 |
| ITF - Portugal F7 | 2017/04/15 11:00 | Eduardo Ribeiro v Afonso Portugal | 6-4,4-6,6-2 |