Stadium: Court 1 Round: 26 Ground: Clay
| ITF M15 Vigo | 2023/10/11 17:15 | Nicola Kuhn v Reda Bennani | 7-5,6-4 |
| ITF M25 Zaragoza | 2023/10/04 08:25 | Nicola Kuhn v Mathys Erhard | 2-6,5-7 |
| ITF M15 Madrid | 2023/09/08 09:30 | Nicola Kuhn v Luciano Emanuel Ambrogi | 6-4,4-6,5-7 |
| ITF M15 Madrid | 2023/09/07 10:50 | Pedro Iamachkine v Nicola Kuhn | 6-7,7-5,1-6 |
| ITF M15 Madrid | 2023/09/06 10:10 | Nicola Kuhn v Peetu Pohjola | 6-3,6-1 |
| ITF M15 Allershausen | 2023/09/03 11:00 | Adrian Oetzbach v Nicola Kuhn | 6-4,5-7,1-6 |
| ITF M15 Allershausen | 2023/09/02 10:00 | Christoph Negritu v Nicola Kuhn | 3-6,1-6 |
| ITF M15 Allershausen | 2023/09/01 11:50 | Tim Ruehl v Nicola Kuhn | 6-3,6-7,3-6 |
| ITF M15 Vigo | 2023/10/11 13:40 | Ruben Hartig v Ian Luca Cervantes Tomas | 6-4,6-2 |
| ITF M15 Vigo | 2023/10/09 12:00 | Renan Perdigao v Ruben Hartig | 0-6,6-7 |
| ITF M25 Zaragoza | 2023/10/02 09:40 | Ruben Hartig v Samuel Brosset | 3-6,1-6 |
| ITF M25 Zaragoza | 2023/10/01 11:00 | Louis Dussin v Ruben Hartig | 6-7,3-6 |
| ITF M25 Monastir | 2023/09/10 08:00 | Ruben Hartig v Robin Bulant | 6-7,7-6,10-12 |
| ITF M25 Oldenzaal | 2023/08/30 15:20 | Luca Matteo Sobbe v Ruben Hartig | 4-6,6-1,7-6 |
| ITF M25 Oldenzaal | 2023/08/29 09:35 | Roland Stuurman v Ruben Hartig | 6-1,6-3 |
| ITF M15 Huy | 2023/08/23 16:30 | Ruben Hartig v Simon Beaupain | 3-6,7-5,3-6 |