Stadium: Platz 3 Round: 25
| ITF M15 Frankfurt Am Main | 2023/08/07 10:00 | Gregor Ramskogler v Bengt Johan Reinhard | 6-2,6-4 |
| ITF M25 Kassel | 2023/07/10 13:05 | Milan Welte v Bengt Johan Reinhard | 6-0,6-0 |
| German Championship | 2023/12/04 11:00 | Kevin Humpfner v Nino Toto | 7-5,6-4 |
| ITF M25 Heraklion | 2023/11/28 09:20 | Anthony Genov v Kevin Humpfner | 1-6,6-3,10-6 |
| ITF M15 Heraklion | 2023/11/21 07:00 | Jannik Maute v Kevin Humpfner | 6-3,7-5 |
| ITF M15 Heraklion | 2023/11/20 10:00 | Benoit Torcq v Kevin Humpfner | 1-6,0-6 |
| ITF M25 Heraklion | 2023/11/13 13:45 | Younes Lalami Laaroussi v Kevin Humpfner | 6-3,6-3 |
| ITF M25 Heraklion | 2023/11/12 07:00 | Kevin Humpfner v Dario Drebenstedt | 6-2,6-0 |
| ITF M15 Budapest | 2023/09/06 10:55 | Kevin Humpfner v Patrick Kaukovalta | 4-6,4-6 |
| ITF M15 Budapest | 2023/09/04 10:00 | Josip Simundza v Kevin Humpfner | 2-6,3-6 |