Stadium: Svijany Court Round: 19 Ground: Clay
| Challenger Segovia | 2023/07/24 10:30 | Constantin Bittoun Kouzmine v Miguel Damas | 3-6,7-5,6-7 |
| Challenger Segovia | 2023/07/23 09:35 | Constantin Bittoun Kouzmine v Arjun Kadhe | 6-3,4-6,6-3 |
| Challenger Pozoblanco | 2023/07/16 18:00 | Miguel Damas v Constantin Bittoun Kouzmine | 6-0,6-1 |
| Challenger Braunschweig | 2023/07/11 16:20 | Timofey Skatov v Constantin Bittoun Kouzmine | 6-3,6-1 |
| Challenger Braunschweig | 2023/07/10 09:00 | Lewie Lane v Constantin Bittoun Kouzmine | 6-7,6-4,5-7 |
| Challenger Braunschweig | 2023/07/09 11:00 | Arthur Reymond v Constantin Bittoun Kouzmine | 2-6,3-6 |
| Challenger Troyes | 2023/07/02 12:45 | Constantin Bittoun Kouzmine v David Jorda Sanchis | 6-7,4-6 |
| ITF M25 Mungia | 2023/06/21 10:30 | Constantin Bittoun Kouzmine v Pedro Vives Marcos | 1-6,6-7 |
| Challenger Liberec | 2023/07/30 08:00 | Dominik Recek v Neil Oberleitner | 3-6,6-4,6-4 |
| ITF M25 Kassel | 2023/07/11 09:30 | Dominik Recek v Karlo Cubelic | 2-6,1-6 |
| ITF M25 Kassel | 2023/07/10 11:35 | Dominik Recek v Max Schoenhaus | 6-3,6-3 |
| ITF M25 Marburg | 2023/07/07 10:30 | Dominik Recek v Louis Wessels | 3-6,0-6 |
| ITF M25 Marburg | 2023/07/06 08:55 | Vincent Marysko v Dominik Recek | 2-6,3-6 |
| ITF M25 Marburg | 2023/07/05 09:00 | Milan Welte v Dominik Recek | 1-6,1-6 |
| ITF M25 Marburg | 2023/07/04 10:05 | Dominik Recek v Gabriel Matuszewski | 6-2,6-1 |
| ITF M25 Jablonec Nad Nisou | 2023/05/31 11:30 | Sebastian Fanselow v Dominik Recek | 6-0,6-3 |