Stadium: Court 1 Round: 62 Ground: Clay
| ITF M25 Bolzano | 2023/07/31 08:50 | Niklas Waldner v Noah Perfetti | 0-6,6-3,2-10 |
| ITF M25 Bolzano | 2023/07/30 12:30 | Niklas Waldner v Serafin Zund | 6-2,2-6,10-4 |
| ITF M25 Kramsach | 2023/07/26 12:20 | Niklas Waldner v Buvaysar Gadamauri | 2-6,7-6,4-6 |
| ITF M25 Telfs | 2023/07/19 09:55 | Alex Barrena v Niklas Waldner | 6-4,6-4 |
| Challenger Salzburg | 2023/07/09 08:30 | Niklas Waldner v Mohamed Safwat | 3-6,5-7 |
| ITF M25 Klosters | 2023/07/06 08:40 | Niklas Waldner v Damien Wenger | 1-6,2-6 |
| ITF M25 Klosters | 2023/07/05 11:00 | Niklas Waldner v Jonas Trinker | 7-6,6-3 |
| ITF M25 Klosters | 2023/07/03 12:10 | Niklas Waldner v Laurin Aerne | 2-6,7-5,10-5 |
| ITF M25 Osijek | 2023/08/10 11:10 | Marcell Bartakovics v Romeo Hadzimehmedovic | 4-6,1-6 |
| ITF M25 Osijek | 2023/08/09 08:00 | Roko Horvat v Marcell Bartakovics | 3-6,3-6 |
| ITF M25 Osijek | 2023/08/08 10:05 | Marcell Bartakovics v Jaka Protic Zakelj | 7-6,2-6,13-11 |
| ITF M25 Osijek | 2023/08/07 12:55 | Marcell Bartakovics v Aleksa Pisaric | 6-4,2-6,10-5 |
| ITF M25 Osijek | 2023/08/06 10:00 | Martin Zeljenka v Marcell Bartakovics | 3-6,3-6 |
| ITF M15 Novi Sad | 2023/07/24 07:30 | Marcell Bartakovics v Jan Kupcic | 4-6,4-6 |
| ITF M25 Pardubice | 2022/09/19 09:00 | Daniel Siniakov v Marcell Bartakovics | 6-7,6-2,10-4 |
| ITF M25 Maribor | 2022/09/06 07:30 | Marcell Bartakovics v Sandro Szic | 0-6,1-6 |