Stadium: Court 3 Round: 44 Ground: Clay
| ITF M15 Prijedor | 2021/05/10 09:15 | Dusan Rajic v Lazar Milicevic | 2-6,2-6 |
| ITF M15 Brcko | 2021/05/18 07:00 | Yann Wojcik v Lazar Milicevic | 4-6,4-6 |
| ITF M15 Prijedor | 2021/05/11 08:00 | Kristijan Juhas v Lazar Milicevic | 6-3,6-0 |
| ITF M15 Prijedor | 2021/05/10 09:15 | Dusan Rajic v Lazar Milicevic | 2-6,2-6 |
| ITF M15 Prijedor | 2021/05/09 09:30 | Lazar Milicevic v Stefan Micov | 6-1,6-2 |
| ITF M15 Brcko | 2021/05/18 07:00 | Valentin Lapalu v Dusan Rajic | 1-6,6-3,6-10 |
| ITF M15 Brcko | 2021/05/16 08:15 | Preston Connor v Dusan Rajic | 3-6,0-6 |
| ITF M15 Prijedor | 2021/05/10 09:15 | Dusan Rajic v Lazar Milicevic | 2-6,2-6 |
| ITF M15 Prijedor | 2021/05/09 09:30 | Vladan Tadic v Dusan Rajic | 3-6,4-6 |
| Eastern European Championship | 2020/07/30 11:00 | Milan Drinic v Dusan Rajic | 7-5,6-3 |
| Eastern European Championship | 2020/07/29 08:00 | Matias Zukas v Dusan Rajic | 6-3,6-4 |
| Eastern European Championship | 2020/07/28 08:00 | Cengiz Aksu v Dusan Rajic | 6-7,6-3,4-6 |
| Eastern European Championship | 2020/07/27 09:30 | Danilo Petrovic v Dusan Rajic | 6-2,6-4 |