Stadium: Court 2 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Pretoria | 2021/09/26 07:00 | Tadija Radovanovic v Rico Gore | 6-2,6-0 |
| ITF M25 Johannesburg | 2021/09/20 08:15 | Tadija Radovanovic v Sahar Simon | 2-6,2-6 |
| ITF M25 Johannesburg Qual | 2021/09/19 07:00 | Tom Saporta v Tadija Radovanovic | 4-6,5-7 |
| ITF M25 Johannesburg | 2021/09/13 13:25 | Dylan Salton v Tadija Radovanovic | 6-3,6-4 |
| ITF M25 Johannesburg | 2021/09/13 07:30 | Tadija Radovanovic v Boitshepo Maake | 6-1,6-3 |
| ITF M25 Johannesburg | 2021/09/12 09:00 | Tadija Radovanovic v Tom Saporta | 6-3,3-6,10-4 |
| UTR Pro Tennis Series Sofia | 2021/09/02 11:30 | Ioan Alexandru Chirita v Tadija Radovanovic | 6-1,6-5 |
| UTR Pro Tennis Series Sofia | 2021/09/01 09:30 | Tadija Radovanovic v Ivan Mikhaylyuk | 2-6,6-3,4-6 |
| ITF M25 Pretoria | 2021/09/26 07:00 | Brandon Levendale v Leonardo Taddia | 0-6,1-6 |
| ITF M15 Bad Waltersdorf | 2021/09/01 09:10 | Omar Giacalone v Leonardo Taddia | 6-2,6-3 |
| ITF M15 Bad Waltersdorf | 2021/08/31 08:20 | Leonardo Taddia v Luca Castagnola | 6-2,4-6,10-6 |
| ITF M15 Bad Waltersdorf | 2021/08/30 09:00 | Leonardo Taddia v Mattia Ghedin | 4-6,6-2,11-9 |
| ITF M15 Bad Waltersdorf | 2021/08/22 07:00 | Ignacio Carou v Leonardo Taddia | 6-4,7-6 |
| ITF M15 Warmbad-Villach | 2021/08/17 12:00 | Leonardo Taddia v Giacomo Revelli | 4-6,1-6 |
| ITF M15 Warmbad-Villach | 2021/08/15 15:30 | Leonardo Taddia v Patric Prinoth | 6-4,6-0 |
| ITF M15 Perugia | 2021/07/18 15:45 | Leonardo Taddia v Tommaso Roggero | 3-6,2-6 |