Stadium: Court 7 Round: 62 Ground: Clay
| ITF M15 Novi Sad | 2021/08/01 12:15 | Domagoj Biljesko v Kristijan Juhas | 7-5,6-4 |
| ITF M15 Novi Sad | 2021/07/25 09:30 | Lazar Milicevic v Domagoj Biljesko | 6-2,6-3 |
| ITF M15 Doboj | 2021/07/14 13:10 | Dusan Obradovic v Domagoj Biljesko | 7-5,6-2 |
| ITF M25 Velenje | 2021/07/07 10:05 | Bor Artnak v Domagoj Biljesko | 6-4,1-6,6-2 |
| ITF M25 Velenje | 2021/07/06 08:00 | Domagoj Biljesko v Nicolas Parizzia | 6-3,7-5 |
| ITF M25 Velenje | 2021/07/05 09:00 | Domagoj Biljesko v Tadija Radovanovic | 6-4,4-6,11-9 |
| ITF M15 Szarajevó | 2021/06/03 10:30 | Domagoj Biljesko v Hernan Casanova | 2-6,3-6 |
| ITF M15 Szarajevó | 2021/06/02 15:55 | Zsombor Velcz v Domagoj Biljesko | 7-6,2-6,5-7 |
| ITF M15 Novi Sad | 2021/08/01 11:15 | Marko Stakusic v Petar Jovanovic | 5-7,3-6 |
| ITF M15 Doboj | 2021/07/12 11:00 | Petar Jovanovic v Carles Hernandez | 6-3,3-6,4-10 |
| ITF M15 Doboj | 2021/07/11 12:30 | Petar Jovanovic v Tadija Radovanovic | 6-3,6-2 |
| Davis Kupa | 2021/06/26 07:55 | Petar Jovanovic v Nadir Sargsyan | 6-0,6-2 |
| Davis Kupa | 2021/06/24 08:00 | Petar Jovanovic v Elvin Hashimov | 6-1,6-1 |
| Davis Kupa | 2021/06/22 08:00 | Petar Jovanovic v Elbi Mjeshtri | 6-3,6-0 |
| ITF M15 Szarajevó | 2021/06/01 09:00 | Petar Jovanovic v Luka Petrovic | 3-6,7-5,9-11 |
| ITF M15 Szarajevó | 2021/05/31 10:00 | Peter Goldsteiner v Petar Jovanovic | 6-7,4-6 |