Ground: Clay
| ITF M25 Figueira da Foz | 2025/07/02 10:00 | Sebastian Fanselow v Olle Wallin | 4-6,4-6 |
| ITF M25 Elvas | 2025/06/25 12:42 | Noah Lopez Cherubino v Sebastian Fanselow | 6-3,6-7,6-4 |
| ITF M25 Mataro | 2025/05/20 10:32 | Sebastian Fanselow v Oleksii Krutykh | 3-6,2-6 |
| Challenger Oeiras | 2025/05/11 10:00 | Sebastian Fanselow v Joao Domingues | 4-6,0-6 |
| ITF M15 Sanxenxo | 2025/04/23 09:00 | Sebastian Fanselow v Antoine Berger | 2-6,3-6 |
| ITF M25 Quinta Do Lago | 2025/03/05 10:00 | Sebastian Fanselow v Mario G Fernandez | 6-2,4-6,0-2 |
| ITF M25 Vila Real de Santo Antonio | 2025/02/12 14:20 | Cezar Cretu v Sebastian Fanselow | 6-4,4-6,6-3 |
| ITF M15 Cadolzburg | 2025/01/16 11:30 | Sebastian Fanselow v Christian Djonov | 6-7,3-6 |
| ITF M25 Wetzlar | 2025/07/31 12:30 | Nikolai Barsukov v Jelle Sels | 1-6,6-3,5-7 |
| ITF M25 Wetzlar | 2025/07/29 11:30 | Nikolai Barsukov v Yannik Kelm | 2-6,6-4,5-2 |
| ITF M15 Uslar | 2025/07/17 14:23 | Marcel Zielinski v Nikolai Barsukov | 7-5,7-5 |
| ITF M15 Uslar | 2025/07/17 08:00 | Nikolai Barsukov v Maximilian Homberg | 5-7,6-3,7-6 |
| ITF M15 Telfs | 2025/07/10 09:30 | Ondrej Horak v Nikolai Barsukov | 6-4,6-4 |
| ITF M15 Telfs | 2025/07/09 11:08 | Nikolai Barsukov v Jakub Nicod | 6-1,6-7,7-6 |
| ITF M15 Kamen | 2025/06/24 16:00 | Adrian Oetzbach v Nikolai Barsukov | 6-4,6-2 |
| ITF M15 Saarlouis | 2025/06/18 11:30 | Jonas P Hartenstein v Nikolai Barsukov | 6-3,6-3 |