Stadium: Court 3 Round: 54 Ground: Clay
| ITF M15 Celje | 2023/06/26 10:55 | Maurus Malgiaritta v Niklas Waldner | 6-4,6-4 |
| ITF M15 Warmbad-Villach | 2023/05/21 10:00 | Aljaz Jeran v Niklas Waldner | 6-2,6-3 |
| ITF M15 Kursumlijska Banja | 2023/05/02 09:00 | Viktor Jovic v Niklas Waldner | 6-1,6-3 |
| ITF M15 Kursumlijska Banja | 2023/05/01 07:00 | Dmitrii Vasilev v Niklas Waldner | 6-3,1-6,7-10 |
| ITF M15 Kursumlijska Banja | 2023/04/24 07:00 | Aljaz Jeran v Niklas Waldner | 6-4,6-4 |
| ITF M25 Opatija | 2023/03/21 13:30 | Andrej Nedic v Niklas Waldner | 7-5,6-4 |
| ITF M25 Opatija | 2023/03/21 09:00 | Ivan Kremenchutskyi v Niklas Waldner | 6-4,3-6,8-10 |
| ITF M25 Opatija | 2023/03/19 10:30 | Sanisth Juneja v Niklas Waldner | 1-6,1-6 |
| ITF M25 Klosters | 2023/07/02 13:55 | Laurin Aerne v Cristian Campese | 5-7,6-3,10-5 |
| ITF M15 Bergamo | 2023/06/25 07:00 | Laurin Aerne v Christian Fellin | 3-6,3-6 |
| ITF M15 Saarlouis | 2023/06/18 12:00 | John Sperle v Laurin Aerne | 6-4,6-2 |
| ITF M15 Monastir | 2023/04/24 13:00 | Laurin Aerne v Valentin Lapalu | 2-6,2-6 |
| ITF M15 Monastir | 2023/04/24 08:00 | Laurin Aerne v Andrej Krajcik | 6-2,6-3 |
| ITF M15 Monastir | 2023/04/23 08:30 | Omar Brigida v Laurin Aerne | 4-6,6-0,11-13 |
| ITF M15 Monastir | 2023/04/16 11:30 | Laurin Aerne v Ye Cong Mo | 0-6,3-6 |
| ITF M25 Trimbach | 2023/03/13 13:50 | Laurin Aerne v Maximilian Figl | 2-6,7-6,7-10 |