Stadium: CEE Logistic Round: 28 Ground: Clay
| Challenger Augsburg | 2023/08/21 08:00 | Christoph Negritu v Nicola Kuhn | 2-6,6-3,7-5 |
| ITF M15 Allershausen | 2023/09/01 10:00 | Tom Gentzsch v Christoph Negritu | 2-6,6-7 |
| ITF M15 Allershausen | 2023/08/31 13:10 | Yannik Kelm v Christoph Negritu | 2-6,4-6 |
| ITF M15 Allershausen | 2023/08/30 11:35 | Gregor Ramskogler v Christoph Negritu | 5-7,3-6 |
| Challenger Augsburg | 2023/08/22 14:25 | Christoph Negritu v Oriol Roca Batalla | 2-6,7-6,3-6 |
| Challenger Augsburg | 2023/08/21 08:00 | Christoph Negritu v Nicola Kuhn | 2-6,6-3,7-5 |
| Challenger Augsburg | 2023/08/20 09:40 | Julian Ocleppo v Christoph Negritu | 3-6,3-6 |
| ITF M15 Ueberlingen | 2023/08/16 09:40 | Christoph Negritu v Arthur Nagel | 6-7,5-7 |
| Challenger Luedenscheid | 2023/07/30 10:25 | Christoph Negritu v Wilson Leite | 6-7,6-3,3-6 |
| ITF M15 Allershausen | 2023/09/01 11:50 | Tim Ruehl v Nicola Kuhn | 6-3,6-7,3-6 |
| ITF M15 Allershausen | 2023/08/31 14:55 | Johannes Haerteis v Nicola Kuhn | 5-7,3-6 |
| ITF M15 Allershausen | 2023/08/30 11:40 | Nicola Kuhn v Hazem Naw | 6-3,4-6,6-2 |
| Challenger Augsburg | 2023/08/21 08:00 | Christoph Negritu v Nicola Kuhn | 2-6,6-3,7-5 |
| Challenger Augsburg | 2023/08/20 08:00 | Nicola Kuhn v Sebastian Gima | 6-1,6-3 |
| Challenger Meerbusch | 2023/08/08 10:25 | Nicola Kuhn v Jan Choinski | 6-7,4-6 |
| ITF M25 Wetzlar | 2023/08/04 12:30 | Nicola Kuhn v Tristan Lamasine | 6-7,4-6 |
| ITF M25 Wetzlar | 2023/08/04 08:00 | Luca Wiedenmann v Nicola Kuhn | 4-6,4-6 |