Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Setubal | 2023/09/20 09:00 | Marco Berti v Alejandro T Alvarez | 1-6,5-7 |
| ITF M25 Setubal | 2023/09/19 09:00 | Alejandro T Alvarez v Stefan Cooper | 6-3,6-1 |
| ITF M25 Setubal | 2023/09/18 09:00 | Alejandro T Alvarez v Joao Antonio | 6-2,6-2 |
| ITF M25 Sintra | 2023/09/12 09:00 | Alejandro T Alvarez v Marcus Walters | 3-6,2-6 |
| ITF M25 Sintra | 2023/09/11 13:00 | Alejandro T Alvarez v Peter Sychev | 6-1,6-1 |
| ITF M25 Oviedo | 2023/08/28 17:45 | Sergio Callejon Hernando v Alejandro T Alvarez | 6-2,6-3 |
| ITF M25 Oviedo | 2023/08/28 08:45 | Amaan Siddiqui v Alejandro T Alvarez | 6-7,2-6 |
| ITF M25 Santander | 2023/08/22 07:55 | Alejandro T Alvarez v Imanol L Morillo | 4-6,2-6 |
| ITF M25 Setubal | 2023/09/20 12:10 | Patrick Schoen v Sebastian Fanselow | 0-6,3-6 |
| ITF M25 Sintra | 2023/09/17 10:00 | Henrique Rocha v Sebastian Fanselow | 6-2,6-3 |
| ITF M25 Sintra | 2023/09/16 11:30 | Martin Damm v Sebastian Fanselow | 6-7,6-4,4-6 |
| ITF M25 Sintra | 2023/09/15 09:00 | Sebastian Fanselow v Duarte Vale | 6-4,6-1 |
| ITF M25 Sintra | 2023/09/14 11:20 | Sebastian Fanselow v Tomas C Abasolo | 6-7,6-3,6-4 |
| ITF M25 Sintra | 2023/09/13 12:20 | Sebastian Fanselow v Kuzey Cekirge | 7-6,7-5 |
| ITF M25 Sintra | 2023/09/09 10:30 | Jaime Faria v Sebastian Fanselow | 6-3,3-6,6-3 |
| ITF M25 Sintra | 2023/09/08 09:30 | Sebastian Fanselow v Duarte Vale | 6-4,6-1 |