Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Portimao | 2023/03/14 12:25 | Tiago Pereira v Sebastian Fanselow | 6-2,3-6,1-6 |
| ITF M25 Tavira | 2023/10/18 13:25 | Sebastian Fanselow v Mats Bredschneijder | 7-5,7-5 |
| ITF M25 Tavira | 2023/10/14 11:00 | Sebastian Fanselow v Henrique Rocha | 3-6,3-6 |
| ITF M25 Tavira | 2023/10/13 10:00 | Aleksandr Braynin v Sebastian Fanselow | 1-6,5-7 |
| ITF M25 Tavira | 2023/10/12 11:00 | Johannes Ingildsen v Sebastian Fanselow | 4-6,5-7 |
| ITF M25 Tavira | 2023/10/11 08:30 | Fabio Coelho v Sebastian Fanselow | 2-6,2-6 |
| Challenger Lisbon | 2023/10/01 09:00 | Sebastian Fanselow v Francesco Forti | 4-6,1-6 |
| Challenger Braga | 2023/09/25 09:00 | Carlos Sanchez Jover v Sebastian Fanselow | 4-6,6-4,6-1 |
| Challenger Braga | 2023/09/24 09:00 | Sebastian Fanselow v Carlos Taberner | 6-3,1-6,7-5 |
| ITF M25 Tavira | 2023/10/18 13:40 | Diego F Flores v Tiago Pereira | 4-6,6-3,2-6 |
| ITF M25 Tavira | 2023/10/13 13:35 | Valentin Royer v Tiago Pereira | 6-1,7-5 |
| ITF M25 Tavira | 2023/10/12 09:00 | Patrick Kaukovalta v Tiago Pereira | 7-6,3-6,2-6 |
| ITF M25 Tavira | 2023/10/11 15:50 | Tiago Pereira v Marlon Vankan | 7-6,6-3 |
| 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 |