Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Oldenzaal | 2021/08/16 10:00 | Adrian Oetzbach v Karlo Cubelic | 5-7,7-5,3-10 |
| Challenger Maia | 2021/12/05 11:00 | Gergely Madarasz v Adrian Oetzbach | 4-6,6-4,6-3 |
| ITF M15 Sharm El Sheikh | 2021/11/17 11:45 | Tsung-Hao Huang v Adrian Oetzbach | 7-6,6-0 |
| ITF M15 Sharm El Sheikh | 2021/11/16 10:00 | Leonid Sheyngezikht v Adrian Oetzbach | 2-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/11/15 11:30 | Nikita Ianin v Adrian Oetzbach | 6-7,3-6 |
| ITF M15 Sharm El Sheikh | 2021/11/10 10:20 | Adrian Oetzbach v Emiliano Maggioli | 3-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/11/09 09:10 | Adrian Oetzbach v Mason Recci | 6-7,7-6,10-4 |
| ITF M15 Sharm El Sheikh | 2021/11/08 09:00 | Henrique S Gomes v Adrian Oetzbach | 1-6,1-6 |
| ITF M15 Sharm El Sheikh | 2021/11/07 13:00 | Adrian Oetzbach v Petar Teodorovic | 2-6,6-2,10-3 |
| ITF M15 Sharm El Sheikh | 2022/04/06 10:45 | Karlo Cubelic v Dominik Boehler | 2-6,6-4,5-7 |
| ITF M15 Sharm El Sheikh | 2022/04/05 10:45 | Karlo Cubelic v Petar Teodorovic | 6-3,3-6,4-10 |
| ITF M15 Sharm El Sheikh | 2022/04/04 11:30 | Karlo Cubelic v Gillian Osmont | 6-2,6-4 |
| ITF M15 Sharm El Sheikh | 2022/03/31 10:15 | Karlo Cubelic v Shuichi Sekiguchi | 4-6,6-7 |
| ITF M15 Sharm El Sheikh | 2022/03/30 12:00 | Karlo Cubelic v Kristjan Tamm | 6-3,4-6,6-2 |
| ITF M15 Sharm El Sheikh | 2022/03/29 08:00 | Sergey Fomin v Karlo Cubelic | 6-4,6-2 |
| ITF M15 Sharm El Sheikh | 2022/03/27 07:00 | Adrian Arcon v Karlo Cubelic | 0-6,1-6 |
| ITF M25 Trimbach | 2022/03/14 15:25 | Karlo Cubelic v Andre Windler | 6-7,2-6 |