| UTR Pro Tennis Series - Sofia | 2021/08/31 06:30 | Tadija Radovanovic v Alexandru Luca | 6-3,6-2 |
| UTR Pro Tennis Series - Sofia | 2021/08/30 07:00 | Leonid Sheyngezikht v Tadija Radovanovic | 6-2,6-3 |
| ITF M15 - Novi Sad | 2021/08/01 08:30 | Tadija Radovanovic v Alan Postay | 2-6,2-6 |
| ITF M15 - Novi Sad | 2021/07/25 12:00 | Rrezart Cungu v Tadija Radovanovic | 7-6,6-3 |
| ITF M15 - Doboj | 2021/07/11 12:30 | Petar Jovanovic v Tadija Radovanovic | 6-3,6-2 |
| ITF M25 - Velenje | 2021/07/05 09:00 | Domagoj Biljesko v Tadija Radovanovic | 6-4,4-6,11-9 |
| ITF M25 - Velenje | 2021/07/04 07:30 | Drazen Petrovic v Tadija Radovanovic | 4-6,3-6 |
| ITF M25 - Belgrad | 2021/06/28 07:00 | George Botezan v Tadija Radovanovic | 7-6,6-2 |
| UTR Pro Tennis Series - Sofia | 2021/08/31 06:30 | Leonid Sheyngezikht v Ivan Mikhaylyuk | 6-2,7-5 |
| UTR Pro Tennis Series - Sofia | 2021/08/30 10:00 | Alexandru Luca v Ivan Mikhaylyuk | 2-6,2-6 |
| ITF M15 - Sofia | 2021/07/05 13:30 | Ivan Mikhaylyuk v Andrew Fenty | 3-6,6-7 |
| ITF M15 - Sofia | 2021/07/05 08:00 | Christoffer Solberg v Ivan Mikhaylyuk | 1-6,3-6 |
| ITF M15 - Sofia | 2021/07/04 10:30 | Andrea Del Federico v Ivan Mikhaylyuk | 2-6,5-7 |
| ITF M25 - Belgrad | 2021/06/27 07:00 | Dusan Rajic v Ivan Mikhaylyuk | 2-6,6-0,12-10 |
| ITF M15 - Sharm El Sheikh | 2021/04/06 09:15 | Volodymyr Uzhylovskyi v Ivan Mikhaylyuk | 6-3,7-5 |
| ITF M15 - Sharm El Sheikh | 2021/04/04 07:30 | Bruno Stefani Figlio v Ivan Mikhaylyuk | 5-7,5-7 |