Stadium: Court 1 Round: 26 Ground: Carpet indoor
| ITF M15 Forbach | 2023/09/27 10:00 | Raphael Calzi v Boris Fassbender | 4-6,3-6 |
| ITF M15 Eupen | 2023/08/09 16:10 | Alessio Basile v Boris Fassbender | 6-4,6-2 |
| ITF M25 Esch/Alzette | 2023/07/20 09:25 | Boris Fassbender v Mikalai Haliak | 2-6,0-6 |
| ITF M25 Esch/Alzette | 2023/07/19 12:45 | Boris Fassbender v Raphael Calzi | 4-6,7-6,6-3 |
| ITF M25 Esch/Alzette | 2023/07/12 11:35 | Marcel Zielinski v Boris Fassbender | 6-3,6-1 |
| ITF M25 Esch/Alzette | 2023/07/10 16:20 | Boris Fassbender v Loris Pourroy | 7-6,7-5 |
| ITF M25 Esch/Alzette | 2023/07/10 13:15 | Boris Fassbender v Charles Berna | 6-2,6-2 |
| ITF M25 Arlon | 2023/06/28 07:50 | Boris Fassbender v Sebastian Fanselow | 2-6,3-6 |
| ITF M15 Forbach | 2023/09/27 08:00 | Niklas Schell v Tom Gentzsch | 6-7,6-7 |
| ITF M15 Buschhausen | 2023/09/14 11:45 | Marc Majdandzic v Tom Gentzsch | 3-6,6-4,6-4 |
| ITF M15 Buschhausen | 2023/09/13 14:45 | Jakob Schnaitter v Tom Gentzsch | 4-6,6-4,3-6 |
| ITF M15 Koszalin | 2023/09/08 15:00 | Dominik Kellovsky v Tom Gentzsch | 6-2,5-7,6-4 |
| ITF M15 Koszalin | 2023/09/07 16:00 | Oskar Grzegorzewski v Tom Gentzsch | 3-6,5-7 |
| ITF M15 Koszalin | 2023/09/06 14:05 | Maciej Matuszczyk v Tom Gentzsch | 5-7,7-5,2-6 |
| ITF M15 Allershausen | 2023/09/01 10:00 | Tom Gentzsch v Christoph Negritu | 2-6,6-7 |
| ITF M15 Allershausen | 2023/08/31 10:00 | Tom Gentzsch v Maik Steiner | 7-6,6-4 |