Stadium: Court 5 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 Bourg-en-Bresse | 2023/06/25 07:00 | Maximilian Figl v Sebastian Rafael Sotelo | 6-4,7-6 |
| ITF M15 Monastir | 2023/06/04 08:30 | Sebastian Rafael Sotelo v Nicolas Jadoun | 3-6,1-6 |
| ITF M15 Huntsville | 2023/05/22 14:00 | Sebastian Rafael Sotelo v Ellis Short | 4-6,2-6 |
| ITF M25 Pensacola | 2023/05/15 14:30 | Evan Bynoe v Sebastian Rafael Sotelo | 7-5,2-6,10-5 |
| UTR Pro Florida | 2023/02/02 19:37 | Yannik Rahman v Sebastian Rafael Sotelo | 6-0,7-5 |
| UTR Pro Florida | 2023/02/02 15:00 | Felipe Pinzon Moreno v Sebastian Rafael Sotelo | 6-0,6-4 |
| UTR Pro Florida | 2023/02/01 20:40 | Justin Lyons v Sebastian Rafael Sotelo | 4-6,6-1,6-3 |
| UTR Pro Florida | 2023/01/30 19:36 | Maximillian Mroz v Sebastian Rafael Sotelo | 2-6,6-3,1-6 |