Stadium: Court Central Round: 25 Ground: Hardcourt indoor
| 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 |
| ITF M25 Koksijde | 2023/08/17 11:25 | Gilles Arnaud Bailly v Marlon Vankan | 4-6,5-7 |
| ITF M25 Koksijde | 2023/08/15 16:55 | Marlon Vankan v Tibo Colson | 6-4,6-4 |
| ITF M15 Eupen | 2023/08/13 13:00 | Marlon Vankan v Marc Majdandzic | 7-5,7-6 |
| ITF M25 Nevers | 2023/10/02 14:35 | Adan Freire Da Silva v Sacha Grandvincent | 6-1,6-4 |
| ITF M25 Nevers | 2023/10/01 14:10 | Adan Freire Da Silva v Niels Villard | 6-4,2-6,10-7 |
| ITF M25 Sintra | 2023/09/13 10:15 | Adan Freire Da Silva v Pedro Araujo | 6-3,1-6,3-6 |
| ITF M25 Sintra | 2023/09/12 11:35 | Adan Freire Da Silva v Rafael Mazon-Hernandez | 6-3,6-2 |
| ITF M25 Sintra | 2023/09/05 14:30 | Adan Freire Da Silva v Philip Hjorth | 6-2,6-7,7-10 |
| ITF M25 Idanha-A-Nova | 2023/08/29 09:10 | Adan Freire Da Silva v David Perez Sanz | 3-6,7-6,2-6 |
| ITF M25 Porto | 2023/07/28 10:00 | Adan Freire Da Silva v Alexandre Reco | 4-6,6-3,5-7 |
| ITF M25 Porto | 2023/07/27 10:00 | Nuno Pinheiro v Adan Freire Da Silva | 3-6,2-6 |