Stadium: Court 8 Round: 26 Ground: Clay
| ITF M25 Santa Margherita | 2023/05/01 11:00 | Sebastian Fanselow v Kai Wehnelt | 4-6,7-6,6-3 |
| Challenger - Rooma | 2023/04/23 08:00 | Sebastian Fanselow v Denis Istomin | 4-6,6-4,3-6 |
| Challenger Oeiras | 2023/04/16 10:10 | Jaime Faria v Sebastian Fanselow | 6-4,7-5 |
| Challenger St Brieuc | 2023/03/23 19:45 | Evan Furness v Sebastian Fanselow | 2-6,6-1,6-4 |
| Challenger St Brieuc | 2023/03/21 19:00 | Sebastian Fanselow v Antoine Hoang | 6-4,6-3 |
| ITF M25 Portimao | 2023/03/16 16:00 | Georgii Kravchenko v Sebastian Fanselow | 6-3,4-6,6-4 |
| ITF M25 Portimao | 2023/03/14 12:25 | Tiago Pereira v Sebastian Fanselow | 6-2,3-6,1-6 |
| Challenger Waco | 2023/02/26 16:00 | Sebastian Fanselow v Henri Squire | 2-6,2-6 |
| ITF M25 Santa Margherita | 2023/05/01 11:10 | Piotr Matuszewski v Lorenzo Ferri | 3-6,6-2,6-0 |
| ITF M25 Split | 2023/04/18 08:00 | Piotr Matuszewski v Maj Premzl | 5-7,2-6 |
| Challenger Zadar | 2023/03/19 13:10 | Piotr Matuszewski v Mirza Basic | 0-6,2-6 |
| Challenger - Guayaquil | 2022/10/31 15:00 | Piotr Matuszewski v Daniel Merida Aguilar | 4-6,4-6 |
| Challenger Coquimbo | 2022/10/16 15:45 | Fermin Tenti v Piotr Matuszewski | 6-4,6-2 |
| Challenger Rio De Janeiro | 2022/10/09 19:10 | Giovanni Mpetshi Perricard v Piotr Matuszewski | 6-3,6-0 |
| ITF M25 Poznań | 2022/08/25 08:30 | Piotr Matuszewski v Pawel Juszczak | 3-6,6-2,7-6 |
| ITF M25 Poznań | 2022/08/23 08:00 | Piotr Matuszewski v Filip Kolasinski | 7-5,3-6,6-2 |