Stadium: Court 5 Round: 62 Ground: Hardcourt outdoor
| 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 M25 Oldenzaal | 2023/08/29 09:35 | Roland Stuurman v Ruben Hartig | 6-1,6-3 |
| ITF M15 Monastir | 2023/10/23 08:00 | Tobias Smoliner v Jaka Protic Zakelj | 4-6,7-6,7-10 |
| ITF M15 Monastir | 2023/10/22 11:30 | Nicholas Van Aken v Jaka Protic Zakelj | 0-6,1-6 |
| ITF M15 Monastir | 2023/10/15 08:00 | Nicolas Philibert v Jaka Protic Zakelj | 4-6,6-2,10-5 |
| ITF M15 Monastir | 2023/10/09 08:00 | Jaka Protic Zakelj v Stefano D'Agostino | 6-3,3-6,8-10 |
| ITF M15 Monastir | 2023/10/08 08:00 | Alexey Nesterov v Jaka Protic Zakelj | 3-6,7-6,7-10 |
| ITF M15 Bad Waltersdorf | 2023/10/01 09:00 | David Fix v Jaka Protic Zakelj | 7-6,6-4 |
| ITF M25 Zlatibor | 2023/09/29 09:50 | Jaka Protic Zakelj v Vladyslav Orlov | 2-6,1-6 |
| ITF M25 Zlatibor | 2023/09/28 13:35 | Jaka Protic Zakelj v Sasa Markovic | 6-4,3-6,12-10 |