Stadium: Banco Carregosa Round: 25 Ground: Hardcourt outdoor
| ITF M25 Loule | 2023/03/05 17:30 | Goncalo Oliveira v Lucas Poullain | 6-3,6-2 |
| Challenger - Segovia | 2023/07/25 11:45 | Cem Ilkel v Goncalo Oliveira | 7-6,7-6 |
| ITF M25 Castelo Branco | 2023/07/23 09:00 | Goncalo Oliveira v Fabrizio Andaloro | 6-2,6-1 |
| ITF M25 Castelo Branco | 2023/07/22 08:30 | Goncalo Oliveira v Guillaume Dalmasso | 7-6,3-6,7-6 |
| ITF M25 Castelo Branco | 2023/07/21 08:30 | Goncalo Oliveira v Julio Cesar Porras | 7-6,7-5 |
| ITF M25 Castelo Branco | 2023/07/20 08:30 | Goncalo Oliveira v Tiago Pereira | 6-2,7-6 |
| ITF M25 Castelo Branco | 2023/07/19 08:30 | Goncalo Oliveira v Pedro Araujo | 6-4,6-4 |
| ITF M15 Sofia | 2023/07/09 06:50 | Goncalo Oliveira v Marvin Moeller | 6-3,6-1 |
| ITF M15 Sofia | 2023/07/08 09:35 | Goncalo Oliveira v Denis Klok | 6-3,6-4 |
| Challenger Porto | 2023/07/31 10:00 | Lucas Poullain v Adria Soriano Barrera | 7-5,7-6 |
| Challenger Porto | 2023/07/30 12:40 | Lucas Poullain v Tiago Silva | 6-0,6-1 |
| ITF M25 Porto | 2023/07/26 12:45 | Jaime Faria v Lucas Poullain | 6-2,6-3 |
| Challenger Pozoblanco | 2023/07/16 08:00 | Lucas Poullain v Evgeny Karlovskiy | 3-6,2-6 |
| ITF M25 Ajaccio | 2023/07/09 17:00 | Lucas Poullain v Jules Marie | 4-6,4-6 |
| ITF M25 Ajaccio | 2023/07/08 17:35 | Lucas Poullain v Antoine Bellier | 7-5,7-5 |
| ITF M25 Ajaccio | 2023/07/07 21:30 | Dan Added v Lucas Poullain | 6-7,4-6 |
| ITF M25 Ajaccio | 2023/07/06 15:00 | Duarte Vale v Lucas Poullain | 3-6,4-6 |