Estádio: Court 5 Round: 44 Ground: Clay
| ITF - M25 Belgrado | 2021/06/27 09:00 | Drazen Petrovic v Stefan Ivic | 6-3,3-6,8-10 |
| ITF - M15 Saraievo | 2021/05/31 12:00 | Valentin Lapalu v Drazen Petrovic | 6-2,7-5 |
| ITF - M15 Saraievo | 2021/05/30 09:00 | Drazen Petrovic v Pavle Daljev | 6-2,6-1 |
| ITF - M25 Kiseljak | 2021/05/24 11:00 | Bozo Barun v Drazen Petrovic | 6-1,6-3 |
| ITF - M25 Kiseljak | 2021/05/23 13:15 | Drazen Petrovic v Sabit Suntic | 6-3,5-7,10-5 |
| ITF - M15 Brcko | 2021/05/18 09:30 | Drazen Petrovic v Lazar Vojinovic | 2-6,3-6 |
| ITF - M15 Brcko | 2021/05/17 15:30 | Boris Butulija v Drazen Petrovic | 2-6,5-7 |
| ITF - M15 Brcko | 2021/05/16 14:00 | Drazen Petrovic v Milan Macura | 6-2,6-1 |
| ITF - M25 Belgrado | 2021/06/28 07:00 | George Botezan v Tadija Radovanovic | 7-6,6-2 |
| ITF - M25 Belgrado | 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 Saraievo | 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 |