Stadium: Indoor 1 Round: 54 Ground: Clay
| ITF M25 Maribor | 2023/08/28 15:30 | Raphael Calzi v Vid Mohar | 6-1,6-2 |
| ITF M25 Ystad | 2023/08/16 13:35 | Raphael Calzi v Stijn Pel | 6-2,3-6,3-6 |
| ITF M25 Ystad | 2023/08/15 08:35 | Raphael Calzi v Rafael Ymer | 6-1,6-0 |
| ITF M25 Ystad | 2023/08/14 08:40 | Raphael Calzi v Nicolai Zachrisson | 6-0,6-0 |
| ITF M15 Eupen | 2023/08/07 08:00 | Felix Mischker v Raphael Calzi | 7-6,6-4 |
| ITF M25 Wetzlar | 2023/08/01 10:30 | Facundo Yunis v Raphael Calzi | 6-4,6-1 |
| ITF M25 Wetzlar | 2023/07/31 12:00 | Dimitris Sakellaridis v Raphael Calzi | 2-6,5-7 |
| ITF M25 Esch/Alzette | 2023/07/19 12:45 | Boris Fassbender v Raphael Calzi | 4-6,7-6,6-3 |
| ITF M25 Maribor | 2023/08/28 15:25 | Claudiu Mircea v Jan Neuburger-Higby | 2-6,6-7 |
| ITF M15 Monastir | 2023/08/20 09:30 | Jan Neuburger-Higby v Mohammad Alkotop | 7-6,2-6,5-10 |
| ITF M15 Monastir | 2023/08/13 12:00 | Rocco Piatti v Jan Neuburger-Higby | 6-3,6-2 |
| Davis Cup | 2023/08/05 16:25 | Jan Neuburger-Higby v Patrick Sydow | 6-7,2-6 |
| Davis Cup | 2023/08/04 15:30 | Dayron Zuniga v Jan Neuburger-Higby | 1-6,3-6 |
| Davis Cup | 2023/08/02 15:25 | Jan Neuburger-Higby v Herbert Jody Maginley | 3-6,6-7 |
| Davis Cup | 2023/08/01 15:50 | Kaeri H Mariona v Jan Neuburger-Higby | 6-2,6-4 |