Stadium: Court 6 Round: 44 Ground: Clay
| ITF M25 Belgrade | 2021/06/28 07:00 | Quentin Folliot v Aleksa Mardjonovic | 6-3,7-5 |
| ITF M25 Belgrade | 2021/06/27 09:00 | Valentin Vanta v Aleksa Mardjonovic | 5-7,3-6 |
| ITF M15 Skopje | 2021/05/31 11:00 | Luigi Sorrentino v Aleksa Mardjonovic | 6-0,6-4 |
| ITF M15 Brcko | 2021/05/16 07:00 | Yann Wojcik v Aleksa Mardjonovic | 6-2,6-2 |
| ITF M15 Skopje | 2021/06/11 07:00 | Alexis Gautier v Obrad Markovski | 6-4,6-3 |
| ITF M15 Skopje | 2021/06/10 08:35 | Kalin Ivanovski v Obrad Markovski | 6-3,4-6,4-6 |
| ITF M15 Skopje | 2021/05/31 12:30 | Stefano Battaglino v Obrad Markovski | 6-2,5-7,10-7 |
| ITF M25 Kiseljak | 2021/05/23 07:00 | Stefan Micov v Obrad Markovski | 6-3,6-7,10-5 |
| ITF M15 Brcko | 2021/05/18 14:00 | Obrad Markovski v Aleksandar Tomas | 4-6,1-6 |
| ITF M15 Brcko | 2021/05/16 14:00 | Obrad Markovski v Stefan Ivic | 6-4,6-2 |
| ITF M15 Prijedor | 2021/05/09 12:30 | Duje Kekez v Obrad Markovski | 6-4,6-3 |
| ITF M15 Sibenik | 2021/04/18 13:00 | Borna Devald v Obrad Markovski | 6-3,5-7,10-7 |