Stadium: Center Court Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2023/11/27 08:30 | Niklas Waldner v Harold Van Raemdonck | 6-4,6-3 |
| ITF - M15 Monastir | 2023/11/26 08:00 | Niklas Waldner v Raman, Rishabdev | 6-2,6-2 |
| ITF M25 Monastir | 2023/11/22 15:00 | Mats Rosenkranz v Niklas Waldner | 6-3,6-3 |
| ITF M25 Monastir | 2023/11/20 15:00 | Niklas Waldner v Ivo Vercik | 6-4,6-2 |
| ITF M25 Monastir | 2023/11/20 10:15 | Aleksandr Lobanov v Niklas Waldner | 4-6,6-3,11-13 |
| ITF M25 Monastir | 2023/11/19 08:30 | Niklas Waldner v Balj, Alexandar | 6-1,6-2 |
| ITF M25 Monastir | 2023/11/13 10:00 | Miguel Garcia v Niklas Waldner | 6-3,7-5 |
| ITF M25 Monastir | 2023/11/12 08:00 | Laelson Rodrigues v Niklas Waldner | 4-6,1-6 |
| ITF M25 Heraklion | 2023/10/31 11:25 | Arthur Gea v de Bakker, Thiemo | 7-6,6-3 |
| ITF - M15 Héraklion | 2023/10/24 09:00 | de Bakker, Thiemo v Oleg Prihodko | 6-4,4-6,5-7 |
| ITF - M25 Santa Margherita | 2023/10/10 10:55 | de Bakker, Thiemo v Buvaysar Gadamauri | 3-6,4-6 |
| ITF - M25 Santa Margherita | 2023/10/09 07:55 | de Bakker, Thiemo v Toby Martin | 6-0,6-1 |
| ITF - M25 Santa Margherita | 2023/10/08 08:30 | de Bakker, Thiemo v Cossu Floris, Paolo Emilio | 6-1,6-2 |
| ITF - M25 Santa Margherita | 2023/10/04 08:00 | Federico Iannaccone v de Bakker, Thiemo | 3-6,7-6,6-2 |
| ITF M15 Buschhausen | 2023/09/15 15:25 | de Bakker, Thiemo v Martin Krumich | 3-6,2-6 |
| ITF M15 Buschhausen | 2023/09/14 12:05 | Deney Wassermann v de Bakker, Thiemo | 3-6,2-6 |