| UTR Pro Tennis Series Zadar | 2021/11/18 09:00 | Michalis Sakellaridis v Petar Pjevcevic | 6-3,7-6 |
| UTR Pro Tennis Series Zadar | 2021/11/15 13:30 | Michalis Sakellaridis v Domagoj Biljesko | 1-6,1-6 |
| 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 |
| UTR Pro Tennis Series Zadar | 2021/11/18 16:00 | Ivan Mikhaylyuk v Alen Bill | 3-6,2-6 |
| UTR Pro Tennis Series Zadar | 2021/11/16 14:30 | Ivan Mikhaylyuk v Timur Maulenov | 5-7,6-3,6-3 |
| UTR Pro Tennis Series Zadar | 2021/11/15 10:30 | Vladyslav Manafov v Ivan Mikhaylyuk | 6-0,3-6,6-1 |
| ITF M15 Kazan | 2021/10/11 12:05 | Ivan Mikhaylyuk v Maksim Starostin | 2-6,2-6 |
| ITF M15 Sozopol | 2021/09/13 08:00 | Ivan Mikhaylyuk v Richard Biagiotti | 3-6,2-6 |
| UTR Pro Tennis Series Sofia | 2021/09/02 07:00 | Ivan Mikhaylyuk v George Lazarov | 3-6,1-6 |
| UTR Pro Tennis Series Sofia | 2021/09/01 09:30 | Tadija Radovanovic v Ivan Mikhaylyuk | 2-6,6-3,4-6 |
| UTR Pro Tennis Series Sofia | 2021/08/31 06:30 | Leonid Sheyngezikht v Ivan Mikhaylyuk | 6-2,7-5 |