Stadium: Court 1 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Tavira | 2023/10/09 09:00 | Alexis Boureau v Johannes Seeman | 3-6,6-3,10-3 |
| ITF M25 Tavira | 2023/10/08 09:00 | Ashwin Vaithianathan v Johannes Seeman | 3-6,1-6 |
| ITF M25 Nevers | 2023/10/01 13:40 | Johannes Seeman v William Jucha | 4-6,4-6 |
| ITF M25 Falun | 2023/09/24 12:45 | Johannes Seeman v Henrik Bladelius | 7-5,4-6,5-10 |
| ITF M15 Hyvinkaa | 2023/08/01 07:00 | Johannes Seeman v Filip Apltauer | 4-6,5-7 |
| ITF M15 Hyvinkaa | 2023/07/31 09:30 | Ivan Denisov v Johannes Seeman | 2-6,2-6 |
| ITF M25 Kramsach | 2023/07/23 08:00 | Johannes Seeman v Batiste Guerra | 4-6,7-6,6-10 |
| ITF M15 Monastir | 2023/06/25 10:30 | Loann Massard v Johannes Seeman | 6-3,6-7,10-6 |
| ITF M25 Tavira | 2023/10/09 09:00 | Tiago Boschmans v Simon Freund | 0-6,1-6 |
| ITF M25 Tavira | 2023/10/08 11:30 | Leo Lagarrigue v Tiago Boschmans | 1-6,6-1,9-11 |
| ITF M25 Setubal | 2023/09/18 09:00 | Tiago Boschmans v Guilherme Valdoleiros | 2-6,0-6 |
| ITF M25 Sintra | 2023/09/11 09:00 | Tiago Boschmans v Daniel Batista | 3-6,1-6 |
| ITF M25 Sintra | 2023/09/10 08:30 | Ander Tarrio Ponte v Tiago Boschmans | 2-6,5-7 |
| ITF M25 Sintra | 2023/09/03 08:00 | Tomas Almeida v Tiago Boschmans | 6-4,3-6,10-8 |
| ITF M25 Porto | 2023/07/24 10:00 | Tiago Boschmans v Davide Ferrarolli | 6-7,6-7 |
| ITF M25 Porto | 2023/07/23 09:00 | Tiago Boschmans v Matteo Covato | 6-2,7-5 |