Estádio: Center Court Round: 26 Ground: Hardcourt indoor
| Challenger - Bienna | 2023/03/22 10:00 | Max Hans Rehberg v Daniel Masur | 6-3,6-7,6-3 |
| Challenger - Bienna | 2023/03/20 10:00 | Max Hans Rehberg v Neil Oberleitner | 6-7,4-6 |
| Challenger - Bienna | 2023/03/19 11:45 | Max Hans Rehberg v Niklas Schell | 6-3,6-4 |
| ITF - M15 Oberhaching | 2023/02/16 12:55 | Mick Veldheer v Max Hans Rehberg | 6-2,6-4 |
| ITF - M15 Oberhaching | 2023/02/15 16:20 | Kirill Kivattsev v Max Hans Rehberg | 2-6,2-6 |
| Challenger - Koblenz | 2023/01/30 16:30 | Max Hans Rehberg v Alexandre Muller | 4-6,4-6 |
| ITF - M25 Nussloch | 2023/01/26 11:40 | Peter Heller v Max Hans Rehberg | 7-6,4-6,6-1 |
| ITF - M25 Nussloch | 2023/01/25 18:00 | Tim Handel v Max Hans Rehberg | 6-7,6-7 |
| Challenger - Bienna | 2023/03/22 12:10 | Mika Brunold v Zdenek Kolar | 6-1,6-4 |
| ITF - M25 Trimbach | 2023/03/16 09:00 | Mika Brunold v Daniel Masur | 2-6,2-6 |
| ITF - M25 Trimbach | 2023/03/15 09:00 | Dylan Dietrich v Mika Brunold | 6-7,3-6 |
| Challenger - Lugano | 2023/03/10 12:35 | Mika Brunold v Antoine Escoffier | 0-6,3-6 |
| Challenger - Lugano | 2023/03/08 11:50 | Raul Brancaccio v Mika Brunold | 5-7,3-6 |
| Challenger - Lugano | 2023/03/06 14:20 | Mika Brunold v Manuel Guinard | 4-6,6-2,6-2 |
| ITF - M15 Oberhaching | 2023/02/16 11:00 | Mats Rosenkranz v Mika Brunold | 6-1,6-4 |
| ITF - M15 Oberhaching | 2023/02/14 14:20 | Mika Brunold v Peter Benjamin Privara | 6-0,6-2 |