Stadium: Court 1 Round: 14 Ground: Hardcourt indoor
| Challenger Tulln | 2025/09/02 12:00 | Rudolf Molleker v David Poljak | 7-6,4-6,6-3 |
| Challenger Tulln | 2025/09/01 09:15 | David Poljak v Dan Martin | 7-6,4-6,7-5 |
| Challenger Manacor | 2025/08/25 09:35 | Adria Soriano Barrera v David Poljak | 6-4,7-6 |
| Challenger Hersonissos | 2025/08/10 13:35 | Arthur Reymond v David Poljak | 6-3,7-6 |
| Challenger Grodzisk Mazowiecki | 2025/08/03 10:20 | Daniil Glinka v David Poljak | 6-4,6-2 |
| Challenger Segovia | 2025/07/20 10:35 | Abedallah Shelbayh v David Poljak | 6-2,6-3 |
| ITF M25 Ceska Lipa | 2025/06/10 09:30 | Louis Wessels v David Poljak | 6-7,6-1,7-6 |
| ITF M25 Ceska Lipa | 2025/06/09 09:30 | David Poljak v Vojtech Mares | 2-6,6-4,1-0 |
| ITF M25 Oldenzaal | 2025/08/27 08:00 | Niklas Schell v Niels Visker | 3-6,6-3,3-6 |
| ITF M25 Uberlingen | 2025/08/22 18:34 | Niklas Schell v Oscar Otte | 0-6,1-2 |
| ITF M25 Uberlingen | 2025/08/22 11:00 | Dominik Kellovsky v Niklas Schell | 4-6,4-6 |
| ITF M25 Uberlingen | 2025/08/20 15:31 | Niklas Schell v Richard Antoni | 1-6,6-2,6-2 |
| 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 |