Stadium: Court 5 Ground: Clay
Referee:
| ITF M15 Segrate | 2025/07/23 11:09 | Alexander Weis v Justin Schlageter | 6-7,6-4,6-2 |
| ITF M15 Telfs | 2025/07/09 11:16 | Dennis Novak v Justin Schlageter | 6-4,6-2 |
| ITF M25 Marburg | 2025/07/01 10:00 | Michael Agwi v Justin Schlageter | 6-4,6-1 |
| ITF M15 Klagenfurt | 2025/06/05 08:00 | Justin Schlageter v Sebastian Prechtel | 7-6,4-6,5-7 |
| ITF M15 Klagenfurt | 2025/06/04 08:00 | Sebastian Sorger v Justin Schlageter | 6-2,4-6,5-7 |
| ITF M15 Warmbad-Villach | 2025/05/28 11:00 | Justin Schlageter v Alex Barrena | 2-6,6-7 |
| ITF M15 Warmbad-Villach | 2025/05/26 10:36 | Jeremy Schifris v Justin Schlageter | 6-7,4-6 |
| ITF M25 Reggio Emilia | 2025/05/16 10:00 | Federico Iannaccone v Justin Schlageter | 6-2,6-2 |