Stadium: Court 6 Round: 54 Ground: Clay
| ITF M15 Duffel | 2023/06/12 08:00 | Marlon Vankan v Karlo Cubelic | 3-6,7-5,10-6 |
| ITF M15 Duffel | 2023/06/11 14:00 | Andre Megrabian v Karlo Cubelic | 3-6,1-6 |
| ITF M25 Sharm El Sheikh | 2023/04/19 11:20 | Karlo Cubelic v Robin Bertrand | 2-6,2-6 |
| ITF M25 Sharm El Sheikh | 2023/04/18 10:20 | Karlo Cubelic v Yurii Dzhavakian | 6-7,0-6 |
| ITF M25 Sharm El Sheikh | 2023/04/17 10:50 | Karlo Cubelic v Jason Janis | 6-0,6-1 |
| ITF M25 Sharm El Sheikh | 2023/04/10 08:30 | John Echeverria v Karlo Cubelic | 7-6,6-3 |
| ITF M25 Sharm El Sheikh | 2023/04/09 08:00 | Volodymyr Uzhylovskyi v Karlo Cubelic | 4-6,4-6 |
| ITF M15 Aktobe | 2023/03/08 08:00 | Karlo Cubelic v Igor Kudriashov | 4-6,3-6 |
| ITF M15 Sarajevo | 2023/06/06 07:45 | Nino Toto v Noah Schlagenhauf | 2-6,2-6 |
| ITF M15 Sarajevo | 2023/06/05 08:00 | Daniel Salazar v Nino Toto | 5-7,7-5,2-10 |
| ITF M15 Sarajevo | 2023/06/04 10:00 | Sam Oster v Nino Toto | 6-2,3-6,7-10 |