Stadium: Court 3 Round: 62 Ground: Clay
| ITF M15 Fayetteville | 2023/11/02 17:35 | Olle Wallin v Gerard Planelles Ripoll | 4-6,6-4,3-6 |
| ITF M15 Fayetteville | 2023/11/01 18:00 | Mark Whitehouse v Olle Wallin | 7-6,5-7,6-7 |
| ITF M15 Albuquerque | 2023/09/29 17:55 | Olle Wallin v Liam Draxl | 3-6,4-6 |
| ITF M15 Albuquerque | 2023/09/28 19:45 | Olle Wallin v Fons Van Sambeek | 6-3,6-3 |
| ITF M15 Albuquerque | 2023/09/27 20:20 | Olle Wallin v Alexander Maggs | 6-4,6-7,6-2 |
| ITF M25 Ystad | 2023/08/16 11:40 | Olle Wallin v Lucas Renard | 5-7,7-5,4-6 |
| ITF M15 Uslar | 2023/07/18 10:00 | Maik Steiner v Olle Wallin | 6-7,4-6 |
| ITF M25 Risskov/Aarhus | 2023/06/14 10:40 | Olle Wallin v Jonas P Hartenstein | 2-6,4-6 |
| ITF M15 Villach | 2024/05/12 13:00 | Nico Hipfl v Niklas Waldner | 6-4,7-5 |
| Challenger Mauthausen | 2024/05/05 10:00 | Matej Dodig v Niklas Waldner | 6-4,6-3 |
| ITF M15 Monastir | 2024/05/01 12:15 | Pedro Araujo v Niklas Waldner | 6-1,6-3 |
| ITF M15 Monastir | 2024/04/25 12:40 | Max Wiskandt v Niklas Waldner | 6-3,6-3 |
| ITF M15 Monastir | 2024/04/24 15:00 | Niklas Waldner v Daniel Khazime | 7-6,6-1 |
| ITF M15 Monastir | 2024/04/22 14:20 | Niklas Waldner v Oskar Grzegorzewski | 7-6,6-2 |
| ITF M15 Monastir | 2024/04/21 08:00 | Niklas Waldner v George Gregoriou | 6-2,6-2 |
| ITF M15 Monastir | 2024/04/15 15:30 | Niklas Waldner v Antoine Vincent | 6-7,1-6 |