Stadium: Court 2 Round: 62 Ground: Clay
| ITF M25 - Castelo Branco | 2023/07/19 17:00 | Martyn Pawelski v Felix Mischker | 6-4,6-4 |
| ITF M25 - Santa Margherita | 2023/05/01 08:00 | Rocco Piatti v Felix Mischker | 6-1,6-2 |
| ITF M25 - Santa Margherita | 2023/04/30 08:00 | Paolo Emilio Cossu Floris v Felix Mischker | 2-6,1-6 |
| ITF M15 - Antalya | 2023/04/09 06:30 | Felix Mischker v Takuya Kumasaka | 5-7,1-6 |
| ITF M15 - Antalya | 2023/04/03 13:40 | Felix Mischker v Sean Hess | 1-6,7-5,9-11 |
| ITF M15 - Antalya | 2023/04/02 07:00 | Felix Mischker v Samuil Konov | 3-6,6-3,10-6 |
| ITF M15 - Heraklion | 2023/03/20 10:30 | Elgin Khoeblal v Felix Mischker | 6-2,7-5 |
| ITF M15 - Heraklion | 2023/03/19 07:00 | Felix Mischker v Eitan Dray | 3-6,6-4,12-10 |
| ITF M15 - Metzingen | 2023/07/23 07:30 | Ioannis Kountourakis v Stepan Mruzek | 3-6,5-7 |
| ITF M25 - Telfs | 2023/07/17 07:00 | Francesco Ferrari v Stepan Mruzek | 6-2,6-1 |
| ITF M25 - Telfs | 2023/07/16 09:00 | Stepan Mruzek v Kaj Quirijns | 6-1,6-3 |
| ITF M25 - Kassel | 2023/07/11 11:10 | Milan Welte v Stepan Mruzek | 6-2,6-1 |
| ITF M25 - Kassel | 2023/07/10 13:40 | Noel Larwig v Stepan Mruzek | 3-6,1-6 |
| ITF M25 - Poprad | 2023/06/20 09:25 | Peter Benjamin Privara v Stepan Mruzek | 7-5,7-5 |
| ITF M25 - Poprad | 2023/06/19 10:25 | Michal Krajci v Stepan Mruzek | 4-6,6-7 |
| ITF M25 - Poprad | 2023/06/18 11:00 | Hans Albert Schubert v Stepan Mruzek | 3-6,5-7 |