Ground: Carpet indoor
| ITF M15 Trier | 2019/08/14 10:00 | Niklas Schell v Kai Wehnelt | 7-6,3-6,7-6 |
| ITF Germany F12 | 2018/08/15 15:25 | Niklas Schell v Kai Wehnelt | 4-6,1-6 |
| Challenger Tulln | 2024/09/01 13:55 | Alexey Vatutin v Kai Wehnelt | 0-6,6-2,6-2 |
| ITF M15 Lambermont | 2024/08/23 12:00 | Adrian Oetzbach v Kai Wehnelt | 2-6,6-4,6-4 |
| ITF M15 Lambermont | 2024/08/22 09:00 | Jack Loge v Kai Wehnelt | 3-6,3-6 |
| ITF M15 Lambermont | 2024/08/21 09:00 | Nyo Van Dyck v Kai Wehnelt | 4-6,1-6 |
| ITF M15 Uberlingen | 2024/08/18 13:30 | Maximilian Homberg v Kai Wehnelt | 6-2,1-6,6-3 |
| ITF M15 Uberlingen | 2024/08/17 10:55 | Liam Gavrielides v Kai Wehnelt | 4-6,6-7 |
| ITF M15 Uberlingen | 2024/08/16 11:35 | Kai Wehnelt v Sebastian Prechtel | 3-6,7-5,6-3 |
| ITF M15 Uberlingen | 2024/08/15 10:00 | Kai Wehnelt v Dimitris Sakellaridis | 6-0,6-2 |
| ITF M15 Haren | 2024/09/05 08:15 | Tom Gentzsch v Niklas Schell | 6-3,6-2 |
| ITF M25 Oldenzaal | 2024/08/27 14:45 | Abel Forger v Niklas Schell | 6-4,6-4 |
| ITF M15 Trier | 2024/08/20 15:00 | Niklas Schell v Sebastian Prechtel | 1-6,4-6 |
| ITF M15 Uberlingen | 2024/08/14 17:30 | Leopold Zima v Niklas Schell | 4-6,6-3,7-6 |
| ITF M25 Wetzlar | 2024/08/01 09:00 | Niklas Schell v Christoph Negritu | 3-6,3-6 |
| ITF M25 Wetzlar | 2024/07/31 13:15 | Damien Wenger v Niklas Schell | 5-7,3-6 |
| ITF M25 Kramsach | 2024/07/24 12:05 | Gabriele Bosio v Niklas Schell | 5-7,6-2,6-1 |
| Challenger Braunschweig | 2024/07/07 14:00 | Marvin Moeller v Niklas Schell | 7-6,2-6,6-3 |