Stadium: Court 05 Round: 44 Ground: Clay
| ITF M15 Kursumlijska Banja | 2023/04/24 07:00 | Aljaz Jeran v Niklas Waldner | 6-4,6-4 |
| ITF M15 Krsko | 2023/05/15 10:00 | Manuel Mouilleron Salvo v Aljaz Jeran | 6-7,6-1,10-5 |
| ITF M15 Kursumlijska Banja | 2023/04/30 07:00 | Aljaz Jeran v Alessandro Bellifemine | 6-2,4-6,7-10 |
| ITF M15 Kursumlijska Banja | 2023/04/26 17:35 | Aljaz Jeran v Duje Ajdukovic | 6-3,3-6,4-6 |
| ITF M15 Kursumlijska Banja | 2023/04/25 06:55 | Federico Bertuccioli v Aljaz Jeran | 3-6,3-6 |
| ITF M15 Kursumlijska Banja | 2023/04/24 07:00 | Aljaz Jeran v Niklas Waldner | 6-4,6-4 |
| ITF M15 Kursumlijska Banja | 2023/04/23 07:00 | Maxim Krapivin v Aljaz Jeran | 3-6,3-6 |
| ITF M25 Dubrovnik | 2023/04/04 07:00 | Aljaz Jeran v Stefano Baldoni | 1-6,1-6 |
| ITF M25 Dubrovnik | 2023/04/02 11:30 | Jerko Brkic v Aljaz Jeran | 5-7,7-5,8-10 |
| 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 M15 Rovinj | 2023/03/12 12:00 | Dusan Obradovic v Niklas Waldner | 6-1,6-2 |
| ITF M15 Porec | 2023/03/06 12:50 | Niklas Waldner v Sasa Markovic | 6-7,6-7 |