Stadium: Court 2 Round: 44 Ground: Clay
| ITF M15 Pirot | 2021/09/19 07:00 | Kristof Minarik v Milos Vukovic | 6-3,6-2 |
| ITF M15 Zlatibor | 2021/09/15 08:00 | Yan Bondarevskiy v Kristof Minarik | 6-1,6-4 |
| ITF M15 Zlatibor | 2021/09/14 08:00 | Michal Novansky v Kristof Minarik | 5-7,2-6 |
| ITF M15 Zlatibor | 2021/09/13 08:00 | Kristijan Juhas v Kristof Minarik | 2-6,6-2,5-10 |
| ITF M15 Zlatibor | 2021/09/12 07:30 | Martin Zeljenka v Kristof Minarik | 2-6,2-6 |
| ITF M15 Žilina | 2021/09/01 09:55 | Kristof Minarik v Constantin Bittoun Kouzmine | 4-6,2-6 |
| ITF M15 Žilina | 2021/08/31 07:30 | Kristof Minarik v Radovan Michalik | 6-2,6-2 |
| ITF M15 Bratislava | 2021/08/24 08:00 | Kristof Minarik v Obrad Markovski | 7-6,3-6,3-10 |
| ITF M15 Pirot | 2021/09/19 09:30 | Danilo Ilic v Petar Pjevcevic | 1-6,1-6 |
| ITF M15 Zlatibor | 2021/09/16 09:40 | Fabian Marozsan v Petar Pjevcevic | 6-3,7-5 |
| ITF M15 Zlatibor | 2021/09/15 13:20 | Aleksa Mardjonovic v Petar Pjevcevic | 6-1,3-6,3-6 |
| ITF M15 Zlatibor | 2021/09/14 08:00 | Bozo Barun v Petar Pjevcevic | 6-4,0-6,9-11 |
| ITF M15 Zlatibor | 2021/09/12 10:00 | Milan Macura v Petar Pjevcevic | 4-6,1-6 |
| UTR Pro Tennis Series Portorož | 2021/08/22 07:00 | Petar Pjevcevic v Alec Adamson | 6-1,6-1 |
| UTR Pro Tennis Series Portorož | 2021/08/18 11:00 | Jan Dimitrijevic v Petar Pjevcevic | 2-6,6-7 |
| UTR Pro Tennis Series Portorož | 2021/08/16 12:30 | Max Lukman v Petar Pjevcevic | 7-6,6-7,6-1 |