Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Bad Waltersdorf | 2023/10/08 08:00 | Marcel Zielinski v Branko Djuric | 1-6,2-6 |
| ITF M15 Bad Waltersdorf | 2023/10/07 11:10 | Marcel Zielinski v Sebastian Sorger | 6-1,6-3 |
| ITF M15 Bad Waltersdorf | 2023/10/06 10:10 | Marcel Zielinski v David Pichler | 6-4,5-7,6-1 |
| ITF M15 Bad Waltersdorf | 2023/10/05 11:45 | Matthias Ujvary v Marcel Zielinski | 4-6,7-6,2-6 |
| ITF M15 Bad Waltersdorf | 2023/10/04 12:20 | Patrick Zahraj v Marcel Zielinski | 7-6,3-6,0-6 |
| ITF M15 Buschhausen | 2023/09/14 14:30 | Jonas Forejtek v Marcel Zielinski | 6-3,6-2 |
| ITF M15 Buschhausen | 2023/09/13 10:45 | Marcel Zielinski v Christian Hansen | 7-5,6-1 |
| ITF M15 Koszalin | 2023/09/09 11:00 | Marcel Zielinski v Dominik Kellovsky | 3-6,3-6 |
| ITF M15 Monastir | 2023/11/08 11:30 | Adriano Dzhenev v Simon Beaupain | 6-4,6-0 |
| ITF M15 Monastir | 2023/09/14 10:55 | Louis Tessa v Simon Beaupain | 6-3,6-1 |
| ITF M15 Monastir | 2023/09/13 08:30 | Aurel Ciocanu v Simon Beaupain | 2-6,3-6 |
| Challenger Sevilla | 2023/09/04 10:30 | Diego A B Sanchez v Simon Beaupain | 6-2,6-1 |
| ITF M15 Huy | 2023/08/25 15:10 | Felix Corwin v Simon Beaupain | 6-2,7-6 |
| ITF M15 Huy | 2023/08/25 07:30 | Petro Orlando Fellin v Simon Beaupain | 5-7,4-6 |
| ITF M15 Huy | 2023/08/23 16:30 | Ruben Hartig v Simon Beaupain | 3-6,7-5,3-6 |
| ITF M25 Koksijde | 2023/08/15 10:40 | Simon Beaupain v Alessio Basile | 6-2,4-6,3-6 |