| ITF Portugal F17 | 2017/08/23 09:00 | Perez Sanz, David v Semedo, Miguel | 6-1,6-7,6-2 |
| ITF Portugal F16 | 2017/08/20 09:00 | Kanar, Jonathan v Perez Sanz, David | 5-7,5-7 |
| ITF Portugal F16 | 2017/08/19 09:00 | Perez Sanz, David v Ryan Peniston | 6-0,7-5 |
| ITF Portugal F16 | 2017/08/18 10:10 | Perez Sanz, David v Pulgar-Garcia, Jaime | 6-1,7-5 |
| ITF Portugal F16 | 2017/08/17 10:35 | Perez Sanz, David v Larriere, Clement | 6-4,6-1 |
| ITF Portugal F16 | 2017/08/16 13:15 | Vilardo, Francesco v Perez Sanz, David | 2-6,7-6,3-6 |
| ITF Portugal F12 | 2017/07/23 09:00 | Lucas Catarina v Perez Sanz, David | 6-4,6-4 |
| ITF Portugal F12 | 2017/07/22 09:30 | Nicolas Alvarez Varona v Perez Sanz, David | 6-7,7-5,5-7 |
| ITF Portugal F17 | 2017/08/23 12:00 | Carr, Simon v Guez, David | 1-6,1-6 |
| ITF Portugal F16 | 2017/08/19 09:00 | Guez, David v Kanar, Jonathan | 4-6,1-6 |
| ITF Portugal F16 | 2017/08/17 09:00 | Guez, David v Ryan James Storrie | 6-1,6-2 |
| ITF Portugal F16 | 2017/08/16 09:00 | Guez, David v Deus, Nuno | 6-2,6-7,7-6 |
| ITF Spain F18 | 2017/06/21 17:30 | Guez, David v Alejandro Davidovich Fokina | 1-6,6-0,5-7 |
| ITF Spain F18 | 2017/06/20 20:10 | Guez, David v Dugo Reyes, Jose Antonio | 2-6,6-1,6-1 |
| ITF Israel F10 | 2017/06/17 07:00 | Albano Olivetti v Guez, David | 6-3,7-5 |
| ITF Israel F10 | 2017/06/16 07:00 | Bulis, Mor v Guez, David | 5-7,2-6 |