Stadium: Court 3 Round: 62 Ground: Clay
| ITF M15 Metzingen | 2023/07/23 07:30 | Karlo Cubelic v Stefan Peter Hampe | 6-3,2-6,10-5 |
| ITF M15 Uslar | 2023/07/17 08:00 | Karlo Cubelic v Aaron James Williams | 6-7,6-4,6-10 |
| ITF M25 Kassel | 2023/07/12 11:55 | Hady Habib v Karlo Cubelic | 6-0,6-4 |
| ITF M25 Kassel | 2023/07/11 09:30 | Dominik Recek v Karlo Cubelic | 2-6,1-6 |
| ITF M25 Marburg | 2023/07/05 10:55 | Karlo Cubelic v Louis Wessels | 7-6,4-6,3-6 |
| ITF M25 Marburg | 2023/07/04 07:55 | Tomas Lanik v Karlo Cubelic | 3-6,6-1,7-10 |
| ITF M25 Marburg | 2023/07/03 08:00 | Noah Thurner v Karlo Cubelic | 7-6,3-6,8-10 |
| ITF M15 Kamen | 2023/06/29 09:00 | Karlo Cubelic v Francois Musitelli | 3-6,4-6 |
| ITF M15 Metzingen | 2023/07/23 07:30 | Marvin Schaber v Rostislav Galfinger | 6-7,3-6 |
| ITF M15 Uslar | 2023/07/19 16:50 | Rostislav Galfinger v Christoph Negritu | 2-6,0-6 |
| ITF M15 Uslar | 2023/07/17 13:00 | Aaron James Williams v Rostislav Galfinger | 6-7,2-6 |
| ITF M15 Tehran | 2023/06/15 06:30 | Denis Klok v Rostislav Galfinger | 6-1,6-2 |
| ITF M15 Tehran | 2023/06/14 06:30 | Rostislav Galfinger v Jagmeet Singh | 6-1,6-2 |
| ITF M15 Tehran | 2023/06/13 08:30 | Rostislav Galfinger v Kaya Arinc | 6-3,6-3 |
| ITF M15 Tehran | 2023/06/11 09:30 | Mousa Alkotop v Rostislav Galfinger | 2-6,5-7 |
| UTR Pro Tennis Series Newport Beach | 2022/10/04 20:08 | Alessandro-D Ventre v Rostislav Galfinger | 6-1,6-1 |