Stadium: Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2023/10/23 15:00 | Ruben Hartig v Jaka Protic Zakelj | 1-6,3-6 |
| ITF M15 Vigo | 2023/10/12 13:05 | Nicola Kuhn v Ruben Hartig | 6-0,6-2 |
| 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 M15 Monastir | 2023/10/29 09:30 | Romain Faucon v Nicholas Van Aken | 6-2,6-2 |
| ITF M15 Monastir | 2023/10/22 11:30 | Nicholas Van Aken v Jaka Protic Zakelj | 0-6,1-6 |
| ITF M15 Monastir | 2023/08/06 08:00 | Nicholas Van Aken v Youssef Boubaker | 2-6,1-6 |
| ITF M15 Addis Ababa - kval | 2023/05/21 05:30 | Nicholas Van Aken v Raffael Schaer | 1-6,0-6 |
| ITF M15 Addis Ababa | 2023/05/14 06:00 | Nicholas Van Aken v Tushar Madan | 4-6,2-6 |