Stadium: Court 1 Round: 26 Ground: Clay
| Koszalin, Singles Qualifying M-ITF-POL-02A | 2023/09/06 15:10 | Oskar Grzegorzewski v Filip Kosinski | 6-3,6-3 |
| Poznan, Poland | 2023/06/18 08:30 | Rudolf Molleker v Oskar Grzegorzewski | 6-1,6-2 |
| Koszalin, Singles Qualifying M-ITF-POL-02A | 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 |
| ITF M15 Allershausen | 2023/08/30 10:00 | Tom Gentzsch v David Fix | 6-2,6-4 |
| ITF M15 Trier | 2023/08/27 09:00 | Tom Gentzsch v Hazem Naw | 4-6,2-6 |
| ITF M15 Trier | 2023/08/26 15:20 | Tom Schonenberg v Tom Gentzsch | 4-6,2-6 |
| ITF M15 Trier | 2023/08/25 15:00 | Tom Gentzsch v Max Wiskandt | 7-6,6-7,6-4 |
| ITF M15 Trier | 2023/08/24 15:00 | Tom Gentzsch v Mika Lipp | 6-4,1-6,7-6 |