Stadium: Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Jerusalem | 2021/05/09 08:30 | Tom Saporta v Alexander Gaponenko | 3-6,5-7 |
| ITF M15 Ramat Hasharon | 2021/05/02 07:00 | Keenan Mayo v Tom Saporta | 6-3,6-3 |
| 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 |
| ITF M15 Prijedor | 2021/05/09 12:30 | Tadija Radovanovic v Tim Heger | 3-6,3-6 |
| ITF M15 Opatija | 2021/03/22 11:45 | Tadija Radovanovic v Domagoj Biljesko | 6-7,1-6 |
| ITF M15 Porec | 2021/03/07 11:00 | Paul Valsecchi v Tadija Radovanovic | 6-7,6-3,11-9 |
| Adriatic Tennis Series | 2020/06/08 14:53 | Tadija Radovanovic v Carlos Gomez-Herrera | 4-6,4-5 |
| Adriatic Tennis Series | 2020/06/08 12:20 | Tadija Radovanovic v Carlos Gomez-Herrera | 4-6,4-6 |
| ITF M15 Oberhaching | 2020/02/16 12:30 | Jakob Aichhorn v Tadija Radovanovic | 6-2,6-2 |