Stadium: Central Court Round: 19 Ground: Hardcourt indoor
| ITF M25 - Hamburg | 2021/10/19 14:00 | Lenny Hampel v Alexander Cozbinov | 6-4,6-2 |
| ITF M15 - Sozopol | 2021/10/14 17:15 | Alexander Cozbinov v Marko Tepavac | 2-6,5-7 |
| ITF M15 - Sozopol | 2021/10/14 12:30 | Alexander Cozbinov v Valentin Vanta | 6-2,6-1 |
| ITF M15 - Sozopol | 2021/10/08 07:00 | Yan Bondarevskiy v Alexander Cozbinov | 1-6,6-2,6-1 |
| ITF M15 - Sozopol | 2021/10/07 06:50 | Anthony Genov v Alexander Cozbinov | 3-6,1-6 |
| ITF M15 - Sozopol | 2021/10/06 09:35 | Martin Dimitrov v Alexander Cozbinov | 1-6,3-6 |
| ITF M25 - Skopje | 2021/10/01 12:30 | Alexander Cozbinov v Matteo Arnaldi | 0-6,1-6 |
| ITF M25 - Skopje | 2021/10/01 08:15 | Alexander Cozbinov v Stefano Battaglino | 6-2,7-5 |
| Challenger Ortisei | 2021/11/07 15:10 | Patric Prinoth v Aldin Setkic | 1-6,2-6 |
| Challenger Eckental | 2021/11/03 09:10 | Ramkumar Ramanathan v Aldin Setkic | 7-6,4-6,6-3 |
| Challenger Eckental | 2021/10/31 10:00 | Aldin Setkic v Christopher Heyman | 4-6,5-7 |
| Challenger Losinj | 2021/10/20 08:00 | Aldin Setkic v Mathias Bourgue | 0-6,2-6 |
| Challenger Losinj | 2021/10/18 10:00 | Aldin Setkic v Anthony Genov | 6-3,6-4 |
| ITF M25 - Skopje | 2021/10/02 09:30 | Aldin Setkic v Louis Wessels | 2-6,7-6,3-6 |
| ITF M25 - Skopje | 2021/10/01 13:00 | Aldin Setkic v Andrey Chepelev | 6-4,6-4 |
| ITF M25 - Skopje | 2021/10/01 07:30 | Aldin Setkic v Giorgio Tabacco | 6-4,6-3 |