Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| Challenger Lisbon | 2023/10/01 09:00 | Tiago Pereira v Javier Barranco Cosano | 1-6,2-6 |
| Challenger Braga | 2023/09/25 11:20 | Tiago Pereira v Joao Domingues | 1-6,3-6 |
| Challenger Braga | 2023/09/24 12:15 | Henri Squire v Tiago Pereira | 3-6,6-3,1-6 |
| ITF M25 Setubal | 2023/09/21 12:30 | Aidan Mchugh v Tiago Pereira | 6-3,6-3 |
| ITF M25 Setubal | 2023/09/20 09:00 | Afonso Portugal v Tiago Pereira | 0-6,2-6 |
| ITF M25 Sintra | 2023/09/15 10:50 | Goncalo Oliveira v Tiago Pereira | 6-4,3-6,6-2 |
| ITF M25 Sintra | 2023/09/14 11:20 | Michele Ribecai v Tiago Pereira | 3-6,2-6 |
| ITF M25 Sintra | 2023/09/13 10:30 | Tiago Pereira v Martyn Pawelski | 7-6,6-2 |
| ITF M25 Nevers | 2023/10/06 14:35 | Marlon Vankan v Marvin Moeller | 3-6,2-6 |
| ITF M25 Nevers | 2023/10/05 14:00 | Marlon Vankan v Tom Paris | 7-5,6-4 |
| ITF M25 Nevers | 2023/10/04 08:00 | Marlon Vankan v Adan Freire Da Silva | 6-4,6-4 |
| Challenger Bad Waltersdorf | 2023/09/17 10:10 | Sandro Kopp v Marlon Vankan | 6-2,3-6,6-2 |
| ITF M25 Oldenzaal | 2023/08/31 08:00 | Jeremy Jahn v Marlon Vankan | 7-6,6-2 |
| ITF M25 Oldenzaal | 2023/08/29 14:40 | Marlon Vankan v Brian Bozemoj | 4-6,6-3,6-4 |
| ITF M15 Trier | 2023/08/23 10:55 | Marlon Vankan v Stepan Baum | 2-6,0-6 |
| ITF M25 Koksijde | 2023/08/18 11:25 | Jeremy Jahn v Marlon Vankan | 6-4,6-1 |