Stadium: Court 9 Round: 44 Ground: Clay
| ITF M15 Allershausen | 2023/08/30 10:00 | Niklas Waldner v Marc Majdandzic | 3-6,4-6 |
| ITF M15 Caslano | 2023/08/22 09:25 | Niklas Waldner v Carlo Alberto Fossati | 1-6,6-4,6-7 |
| ITF M15 Kottingbrunn | 2023/08/13 08:00 | Niklas Waldner v Marcell Bartakovics | 1-6,2-6 |
| 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 Maribor Qual | 2023/09/03 09:30 | Luka Veselic v Dusan Baranec | 2-6,1-6 |
| ITF M15 Monastir | 2023/04/17 08:00 | Dusan Baranec v Blaz Rola | 2-6,3-6 |
| ITF M15 Monastir | 2023/04/16 08:00 | Tristan Nitschke v Dusan Baranec | 6-7,3-6 |
| ITF M15 Monastir | 2023/04/10 08:00 | Jacob Bradshaw v Dusan Baranec | 6-2,6-1 |
| ITF M15 Monastir | 2023/04/09 08:00 | Dusan Baranec v Thomas Mathys | 6-2,6-0 |
| ITF M15 Monastir | 2023/04/04 12:30 | Linang Xiao v Dusan Baranec | 6-1,6-1 |
| ITF M15 Monastir | 2023/04/04 08:30 | Anthony Shumsky v Dusan Baranec | 0-6,1-6 |
| ITF M15 Monastir | 2023/04/03 15:00 | Dusan Baranec v Jiri Jenicek | 6-4,0-6,10-5 |