Stadium: Court 1 Round: 25 Ground: Clay
| Challenger - Cordenons | 2023/08/07 17:55 | Riccardo Bonadio v Valentin Vacherot | 7-5,6-4 |
| Challenger - San Marino | 2023/08/03 14:00 | Alexander Weis v Valentin Vacherot | 6-4,3-6,7-6 |
| Challenger - San Marino | 2023/08/01 13:45 | Valentin Vacherot v Zdenek Kolar | 6-2,6-3 |
| Challenger - San Marino | 2023/07/31 09:00 | Valentin Vacherot v Lorenzo Rottoli | 6-3,6-4 |
| Challenger - San Marino | 2023/07/30 09:50 | Valentin Vacherot v Carlo A Caniato | 6-2,6-4 |
| Challenger - Tampere | 2023/07/18 12:40 | Duje Ajdukovic v Valentin Vacherot | 1-6,7-6,6-2 |
| Challenger - Tampere | 2023/07/17 11:05 | Valentin Vacherot v Federico Iannaccone | 6-7,7-6,6-4 |
| Challenger - Tampere | 2023/07/16 13:55 | Valentin Vacherot v Linus Lagerbohm | 6-2,6-1 |
| ITF M15 - Frankfurt Am Main | 2023/08/11 12:50 | Lucas Gerch v Johannes Haerteis | 7-5,6-0 |
| ITF M15 - Frankfurt Am Main | 2023/08/10 10:55 | Kai Lemstra v Johannes Haerteis | 7-5,4-6,2-6 |
| Challenger - Porto | 2023/08/01 16:10 | Johannes Haerteis v Emilio Nava | 6-7,6-7 |
| Challenger - Porto | 2023/07/31 10:00 | Hugo Maia v Johannes Haerteis | 5-7,5-7 |
| Challenger - Porto | 2023/07/30 10:00 | Johannes Haerteis v Victor Lilov | 6-4,2-6,6-2 |
| ITF M25 - Porto | 2023/07/27 11:45 | Johannes Haerteis v Joao Domingues | 6-2,6-7,2-6 |
| ITF M25 - Porto | 2023/07/26 11:35 | Tomas Pinho v Johannes Haerteis | 4-6,6-7 |
| ITF M15 - Cluj Napoca | 2023/06/22 06:50 | Johannes Haerteis v Gabi Adrian Boitan | 2-6,3-6 |