| Challenger Cordenons | 2025/08/04 09:00 | Max Alcala Gurri v Dominik Kellovsky | 6-4,6-2 |
| Challenger Cordenons | 2025/08/03 10:00 | Alexander Donski v Dominik Kellovsky | 6-3,1-6,6-7 |
| ITF M25 Ollersbach | 2025/07/23 09:00 | Matyas Cerny v Dominik Kellovsky | 6-1,6-3 |
| ITF M15 Poprad | 2025/07/19 08:00 | Dominik Kellovsky v Attila Dominik Boros | 6-7,3-6 |
| ITF M15 Poprad | 2025/07/18 10:53 | Dominik Kellovsky v Kristjan Tamm | 6-2,6-7,6-1 |
| ITF M15 Poprad | 2025/07/16 09:00 | Dominik Kellovsky v Giammarco Gandolfi | 7-6,6-3 |
| Challenger Brasov | 2025/06/30 07:30 | Radu Mihai Papoe v Dominik Kellovsky | 6-4,6-3 |
| Challenger Brasov | 2025/06/29 09:30 | Cezar Gabriel Papoe v Dominik Kellovsky | 1-6,6-3,0-6 |
| ITF M15 Trier | 2025/08/13 10:00 | Vincent Marysko v Niklas Schell | 2-6,7-6,6-4 |
| Challenger Nottingham | 2025/07/07 14:30 | Dylan Dietrich v Niklas Schell | 5-7,6-4,6-3 |
| ITF M15 Kayseri | 2025/07/03 07:00 | Daniel Phillips v Niklas Schell | 6-4,5-1 |
| ITF M15 Kayseri | 2025/07/01 07:00 | Raffael Gasanov v Niklas Schell | 3-6,2-6 |
| ITF M15 Kayseri | 2025/06/26 07:30 | Volodymyr Iakubenko v Niklas Schell | 6-4,7-6 |
| ITF M15 Kayseri | 2025/06/25 07:30 | Semen Pankin v Niklas Schell | 6-7,6-1,5-7 |
| ITF M25 Klosters | 2025/06/18 09:15 | Niklas Schell v Marvin Moeller | 7-6,3-6,4-6 |
| ITF M15 Kayseri | 2025/06/07 07:30 | Niklas Schell v Maxwell McKennon | 4-6,1-6 |