Stadium: Court 1 Round: 44 Ground: Hardcourt outdoor
| ITF M25 Setubal | 2023/09/18 09:00 | Alejandro T Alvarez v Joao Antonio | 6-2,6-2 |
| ITF M25 Sintra | 2023/09/11 13:00 | Leonardo Civita-Telles v Joao Antonio | 6-1,6-3 |
| ITF M25 Sintra | 2023/09/11 09:00 | Joao Antonio v Ian Luca Cervantes Tomas | 6-2,6-1 |
| ITF M25 Sintra | 2023/09/06 13:45 | Kuzey Cekirge v Joao Antonio | 6-2,7-6 |
| ITF M25 Sintra | 2023/09/06 08:30 | Philip Hjorth v Joao Antonio | 7-5,3-6,7-10 |
| ITF M25 Sintra | 2023/09/03 08:00 | Joao Antonio v Davide Ferrarolli | 6-3,6-1 |
| ITF M15 Trier | 2023/08/22 11:00 | Valerio Perruzza v Joao Antonio | 6-4,6-0 |
| ITF M25 Porto | 2023/07/23 15:00 | Joao Antonio v Nuno Pinheiro | 4-6,4-6 |
| ITF M25 Setubal | 2023/09/19 11:05 | Ricardo Villacorta-Alonso v Daniel Marincas | 1-6,6-3,6-10 |
| ITF M25 Madrid | 2023/09/12 07:55 | Patricio Alvarado v Ricardo Villacorta-Alonso | 7-6,6-2 |
| ITF M25 Madrid | 2023/09/11 12:00 | Pedro A De Almeida Santos v Ricardo Villacorta-Alonso | 1-6,3-6 |
| ITF M25 Madrid | 2023/09/10 15:00 | Ausias Martin Melo v Ricardo Villacorta-Alonso | 2-6,4-6 |
| ITF M25 Sintra | 2023/09/05 14:30 | Daniel Batista v Ricardo Villacorta-Alonso | 6-3,7-5 |
| ITF M25 Idanha-A-Nova | 2023/08/27 12:00 | Ricardo Villacorta-Alonso v Joe Leather | 6-3,5-7,5-10 |
| ITF M25 Idanha-A-Nova | 2023/08/25 10:20 | Kacper Zuk v Ricardo Villacorta-Alonso | 6-4,6-1 |
| ITF M25 Idanha-A-Nova | 2023/08/24 07:55 | Ricardo Villacorta-Alonso v Pierre Delage | 6-2,7-5 |