Stadium: Court 1 Round: 44 Ground: Clay
| ITF - Prijedor M15 | 2021/05/09 09:30 | Drazen Petrovic v Lazar Vojinovic | 3-6,6-0,4-10 |
| ITF - Brcko M15 | 2021/05/17 15:30 | Boris Butulija v Drazen Petrovic | 2-6,5-7 |
| ITF - Brcko M15 | 2021/05/16 14:00 | Drazen Petrovic v Milan Macura | 6-2,6-1 |
| ITF - Prijedor M15 | 2021/05/09 09:30 | Drazen Petrovic v Lazar Vojinovic | 3-6,6-0,4-10 |
| ITF - Antalya M15 | 2021/01/04 07:00 | Jorge Martinez Martinez v Drazen Petrovic | 6-0,6-1 |
| ITF - Antalya M15 | 2021/01/03 07:00 | Sven Corbinais v Drazen Petrovic | 4-6,2-6 |
| ITF - Brcko M15 | 2021/05/17 15:30 | Lazar Vojinovic v Luka Petrovic | 6-3,6-4 |
| ITF - Brcko M15 | 2021/05/16 11:00 | Lazar Vojinovic v Stevan Popovic | 7-5,6-4 |
| ITF - Prijedor M15 | 2021/05/10 10:30 | Lazar Vojinovic v Tomislav Jotovski | 5-7,0-6 |
| ITF - Prijedor M15 | 2021/05/09 09:30 | Drazen Petrovic v Lazar Vojinovic | 3-6,6-0,4-10 |
| ITF - Antalya M15 | 2021/04/07 09:35 | Lazar Vojinovic v Adam Pavlasek | 1-6,4-6 |
| ITF - Antalya M15 | 2021/04/06 07:00 | Lazar Vojinovic v Michalis Sakellaridis | 1-6,7-6,10-8 |
| ITF - Antalya M15 | 2021/04/05 07:00 | Nicolo Turchetti v Lazar Vojinovic | 1-6,1-6 |
| ITF - Antalya M15 | 2021/04/04 06:30 | Lazar Vojinovic v Vladislav Sveridenko | 6-4,6-2 |