Stadium: Court 6 Round: 62 Ground: Clay
| ITF M15 Pirot | 2021/09/22 09:45 | Alexandar Balj v Gorazd Srbljak | 0-6,3-6 |
| ITF M25 Kiseljak | 2021/05/24 09:30 | Alexandar Balj v Stevan Popovic | 3-6,5-7 |
| ITF M25 Kiseljak | 2021/05/23 09:30 | Alexandar Balj v Danilo Ilic | 6-2,6-1 |
| ITF M15 Prijedor | 2021/05/09 12:30 | Nicolas Zanellato v Alexandar Balj | 6-1,6-4 |
| ITF M15 Pirot | 2021/09/22 11:10 | David Jorda Sanchis v Matija Zugic | 6-0,6-2 |
| ITF M15 Ulcinj | 2021/09/09 08:30 | Savriyan Danilov v Matija Zugic | 6-2,6-0 |
| ITF M15 Ulcinj | 2021/09/07 07:55 | Matija Zugic v Luca Teboul | 6-4,6-4 |
| ITF M15 Ulcinj | 2021/08/29 11:30 | Matija Zugic v Milo Gazivoda | 3-6,3-6 |
| ITF M15 Doboj | 2021/07/11 12:30 | Kristof Minarik v Matija Zugic | 6-4,6-2 |
| ITF M15 Skopje | 2021/06/06 07:30 | Charles Tzicas v Matija Zugic | 6-1,6-3 |
| ITF M15 Skopje | 2021/05/30 14:00 | Luigi Sorrentino v Matija Zugic | 6-1,6-3 |
| ITF M25 Kiseljak | 2021/05/23 12:00 | Matija Zugic v Goran Zivotic | 2-6,1-6 |