Stadium: Court 1 Round: 25 Ground: Clay
| ITF M25 Wetzlar | 2023/08/04 08:00 | Sebastian Fanselow v Niklas Schell | 6-4,6-3 |
| ITF M25 Wetzlar | 2023/08/03 08:00 | Niklas Schell v Jannik Opitz | 6-4,6-4 |
| ITF M25 Telfs | 2023/07/18 10:00 | Peter Heller v Niklas Schell | 6-3,6-1 |
| Challenger Braunschweig | 2023/07/09 11:00 | Niklas Schell v Carlos Taberner | 4-6,4-6 |
| ITF M15 Kamen | 2023/06/29 11:30 | Niklas Schell v Hazem Naw | 1-6,0-6 |
| ITF M15 Kamen | 2023/06/28 10:25 | Niklas Schell v Robin Sanz | 6-4,6-7,6-3 |
| ITF M15 Duffel | 2023/06/14 09:50 | Ryan Nijboer v Niklas Schell | 6-7,6-2,6-4 |
| ITF M25 Kursumlijska Banja | 2023/06/07 18:00 | Lautaro Midon v Niklas Schell | 6-3,6-4 |
| ITF M25 Wetzlar | 2023/08/04 09:35 | Maik Steiner v Vincent Marysko | 6-2,6-1 |
| ITF M25 Wetzlar | 2023/08/03 07:50 | Stepan Mruzek v Vincent Marysko | 3-6,6-7 |
| ITF M25 Wetzlar | 2023/08/01 09:30 | Daniel Salazar v Vincent Marysko | 3-6,6-3,10-5 |
| ITF M25 Wetzlar | 2023/07/31 08:00 | Vojtech Mares v Vincent Marysko | 3-6,2-6 |
| ITF M25 Kassel | 2023/07/11 10:55 | Adrian Oetzbach v Vincent Marysko | 6-4,6-4 |
| ITF M25 Kassel | 2023/07/10 08:00 | Vincent Marysko v Oskar Jansson | 4-6,6-4,10-8 |
| ITF M25 Marburg | 2023/07/06 08:55 | Vincent Marysko v Dominik Recek | 2-6,3-6 |