| UTR Pro Tennis Series Zadar | 2021/11/14 13:00 | Michalis Sakellaridis v Lawrence Bataljin | 6-7,3-5 |
| ITF M15 Benicarlo | 2021/11/07 11:00 | Juan C Garcia Garcia v Michalis Sakellaridis | 7-5,3-6,10-12 |
| ITF M15 Torello | 2021/11/03 12:25 | Michalis Sakellaridis v Pol Amoros Ramos | 0-6,3-6 |
| ITF M15 Torello | 2021/11/02 09:00 | Kuzey Cekirge v Michalis Sakellaridis | 6-2,6-3 |
| ITF M15 Torello | 2021/10/31 08:30 | Gerard Oltra Guiral v Michalis Sakellaridis | 2-6,2-6 |
| ITF M15 Madrid | 2021/10/27 08:00 | Michalis Sakellaridis v Vladislav Ivanov | 1-6,4-6 |
| ITF M25 Madrid | 2021/10/26 08:00 | Jorge Martinez Martinez v Michalis Sakellaridis | 6-3,6-4 |
| ITF M25 Madrid | 2021/10/25 10:30 | Daniel L Salmeron v Michalis Sakellaridis | 1-6,3-6 |
| UTR Pro Tennis Series Zadar | 2021/11/14 14:30 | Petar Pjevcevic v Domagoj Biljesko | 3-6,6-4,2-6 |
| ITF M25 Skopje | 2021/09/27 10:00 | Domagoj Biljesko v Michele Vianello | 6-2,4-6,6-10 |
| ITF M15 Pirot | 2021/09/22 08:00 | Domagoj Biljesko v Calin Manda | 1-6,4-6 |
| ITF M15 Zlatibor | 2021/09/16 08:00 | Domagoj Biljesko v Oleg Prihodko | 2-6,3-6 |
| ITF M15 Zlatibor | 2021/09/15 08:00 | Obrad Markovski v Domagoj Biljesko | 5-7,6-4,2-6 |
| ITF M15 Bad Waltersdorf | 2021/09/01 13:35 | Domagoj Biljesko v David Pichler | 2-6,6-7 |
| ITF M15 Bad Waltersdorf | 2021/08/31 07:00 | Domagoj Biljesko v Hasan Ibrahim | 6-2,6-0 |
| ITF M15 Novi Sad | 2021/08/06 09:00 | Domagoj Biljesko v Francisco Comesana | 2-6,5-7 |