Stadium: Court 3 Round: 44 Ground: Clay
| ITF - M15 Doboj | 2021/07/11 12:30 | Rajic, Dusan v Dusan Obradovic | 4-6,3-6 |
| UTR Pro Tennis Series Beograd | 2021/07/10 07:00 | Shyla, Yaraslau v Dusan Obradovic | 1-6,6-2,6-4 |
| UTR Pro Tennis Series Beograd | 2021/07/09 07:30 | Dusan Obradovic v Michalis Sakellaridis | 6-4,5-4 |
| UTR Pro Tennis Series Beograd | 2021/07/07 10:30 | Dusan Obradovic v Kolisnyk, Olexiy | 6-0,5-4 |
| UTR Pro Tennis Series Beograd | 2021/07/06 12:00 | Dusan Obradovic v de La Bassetiere, Constant | 6-1,3-6,5-2 |
| UTR Pro Tennis Series Beograd | 2021/07/05 07:30 | Slavic, Nikola v Dusan Obradovic | 6-7,6-7 |
| ITF M25 Belgrade | 2021/06/29 07:00 | Jaimee Floyd Angele v Dusan Obradovic | 6-2,7-6 |
| ITF M25 Belgrade | 2021/06/28 07:00 | Dusan Obradovic v Luka Pavlovic | 6-4,3-6,10-4 |
| ITF - M15 Doboj | 2021/07/12 08:00 | Drazen Petrovic v Janos Fekete | 6-4,2-6,13-11 |
| ITF M25 Velenje | 2021/07/04 07:30 | Drazen Petrovic v Tadija Radovanovic | 4-6,3-6 |
| ITF M25 Belgrade | 2021/06/27 09:00 | Drazen Petrovic v Ivic, Stefan | 6-3,3-6,8-10 |
| Sarajevo, Singles Main, M-ITF-BIH-05A | 2021/05/31 12:00 | Valentin Lapalu v Drazen Petrovic | 6-2,7-5 |
| Sarajevo, Singles Main, M-ITF-BIH-05A | 2021/05/30 09:00 | Drazen Petrovic v Daljev, Pavle | 6-2,6-1 |
| ITF - M25 Kiseljak | 2021/05/24 11:00 | Barun, Bozo v Drazen Petrovic | 6-1,6-3 |
| ITF - M25 Kiseljak | 2021/05/23 13:15 | Drazen Petrovic v Suntic, Sabit | 6-3,5-7,10-5 |
| ITF - M15 Brcko | 2021/05/18 09:30 | Drazen Petrovic v Lazar Vojinovic | 2-6,3-6 |