Stadium: Court 2 Round: 44 Ground: Hardcourt outdoor
| ITF - M25 Vale Do Lobo | 2023/11/20 10:30 | Oumaouche, Rayane v Seeman, Johannes | 6-3,5-7,5-10 |
| ITF - M25 Vale Do Lobo | 2023/11/19 11:15 | Seeman, Johannes v Ricardo Batista | 6-3,6-2 |
| ITF - M25 Vale Do Lobo | 2023/11/12 12:00 | Seeman, Johannes v Marco Berti | 1-6,3-6 |
| Tavira, Simples M-ITF-POR-14A | 2023/10/16 08:30 | Johannes Ingildsen v Seeman, Johannes | 3-6,6-3,10-1 |
| Tavira, Simples M-ITF-POR-14A | 2023/10/15 09:00 | Seeman, Johannes v Tiago Boschmans | 7-6,6-1 |
| Tavira, Simples M-ITF-POR-14A | 2023/10/09 09:00 | Alexis Boureau v Seeman, Johannes | 3-6,6-3,10-3 |
| Tavira, Simples M-ITF-POR-14A | 2023/10/08 09:00 | Ashwin Vaithianathan v Seeman, Johannes | 3-6,1-6 |
| ITF M25 Nevers | 2023/10/01 13:40 | Seeman, Johannes v William Jucha | 4-6,4-6 |
| ITF M25 Austin | 2023/11/05 16:00 | Grant Lothringer v Francisco Oliveira | 7-6,6-1 |
| ITF M15 Tallahassee | 2023/10/23 14:00 | Bernard, John v Francisco Oliveira | 6-2,6-3 |
| Tavira, Simples M-ITF-POR-14A | 2023/10/17 14:05 | Francisco Oliveira v Mats Bredschneijder | 2-6,6-4,6-10 |
| Tavira, Simples M-ITF-POR-14A | 2023/10/16 13:30 | Villacorta-Alonso, Ricardo v Francisco Oliveira | 6-3,5-7,7-10 |
| Tavira, Simples M-ITF-POR-14A | 2023/10/10 10:20 | Kuzey Cekirge v Francisco Oliveira | 6-3,5-7,10-6 |
| Tavira, Simples M-ITF-POR-14A | 2023/10/09 16:00 | Francisco Oliveira v Felix Mischker | 6-2,6-2 |
| Tavira, Simples M-ITF-POR-14A | 2023/10/08 09:00 | Almeida, Manuel v Francisco Oliveira | 2-6,4-6 |
| ITF M25 Setubal | 2023/09/20 13:50 | Frederico Ferreira Silva v Francisco Oliveira | 7-5,6-4 |