Stadium: Court 1 Round: 25 Ground: Clay
| 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 Zlatibor | 2021/09/15 09:35 | Oleksandr Ovcharenko v Gorazd Srbljak | 6-4,4-6,6-2 |
| ITF M15 Ulcinj | 2021/09/08 11:00 | Gorazd Srbljak v Rrezart Cungu | 4-6,1-6 |
| ITF M15 Ulcinj | 2021/09/06 14:00 | Gorazd Srbljak v Pietro Marino | 6-2,6-1 |
| ITF M15 Ulcinj | 2021/09/06 07:30 | Gorazd Srbljak v Leonardo Catani | 6-0,6-7,10-1 |
| ITF M15 Ulcinj | 2021/09/02 08:30 | Gorazd Srbljak v Gabriel Donev | 1-6,6-7 |
| ITF M15 Ulcinj | 2021/08/31 08:00 | Oleksandr Ovcharenko v Gorazd Srbljak | 5-7,4-6 |
| ITF M15 Bratislava | 2021/08/26 08:00 | Gorazd Srbljak v Danylo Kalenichenko | 6-7,0-6 |
| ITF M15 Bratislava | 2021/08/25 13:05 | Gorazd Srbljak v Peter Nad | 6-2,6-1 |