Stadium: Court 4 Round: 62 Ground: Clay
| ITF M15 Doboj | 2021/07/12 08:00 | Rrezart Cungu v Lukas Pokorny | 3-6,4-6 |
| ITF M15 Doboj | 2021/07/11 08:15 | Rrezart Cungu v Lazar Vojinovic | 6-3,6-3 |
| ITF M25 Belgrade | 2021/07/01 09:20 | Rrezart Cungu v Nick Hardt | 0-6,6-1,2-6 |
| ITF M25 Belgrade | 2021/06/30 10:05 | Dusan Milanovic v Rrezart Cungu | 2-6,5-7 |
| ITF M25 Belgrade | 2021/06/29 09:15 | Rrezart Cungu v Viktor Jovic | 6-1,6-1 |
| ITF M25 Belgrade | 2021/06/28 10:00 | Stefan Palosi v Rrezart Cungu | 7-6,4-6,8-10 |
| ITF M25 Belgrade | 2021/06/27 13:00 | Rrezart Cungu v Andreja Petrovic | 6-4,6-3 |
| Davis Cup | 2021/06/26 09:00 | Rrezart Cungu v Michael Avetisyan | 6-1,6-0 |
| 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 Belgrade | 2021/06/28 07:00 | George Botezan v Tadija Radovanovic | 7-6,6-2 |
| ITF M25 Belgrade | 2021/06/27 07:00 | Tadija Radovanovic v Milos Vukovic | 6-7,6-4,10-8 |
| ITF M15 Skopje | 2021/06/07 10:00 | Tomas Jirousek v Tadija Radovanovic | 6-2,6-4 |
| ITF M15 Sarajevo | 2021/05/31 08:00 | Tadija Radovanovic v Stevan Popovic | 6-3,5-7,9-11 |
| ITF M25 Kiseljak | 2021/05/24 11:00 | Tadija Radovanovic v Goran Zivotic | 3-6,6-4,3-10 |