Stadium: CENTER COURT (7) Round: 26 Ground: Clay
| ITF M15 Novi Sad | 2021/07/29 09:25 | Gabriel Donev v Gorazd Srbljak | 6-2,6-4 |
| 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 |
| ITF M15 Warmbad-Villach | 2021/08/17 12:00 | Gorazd Srbljak v Lorenzo Vatteroni | 3-6,1-6 |
| ITF M15 Warmbad-Villach | 2021/08/16 12:30 | Gorazd Srbljak v Mattia Ghedin | 6-2,6-0 |
| ITF M15 Novi Sad | 2021/08/06 10:50 | Mate Valkusz v Gorazd Srbljak | 6-2,6-1 |
| ITF M15 Novi Sad | 2021/08/05 14:20 | Matic Spec v Gorazd Srbljak | 4-6,2-6 |
| ITF M15 Novi Sad | 2021/08/04 10:00 | Gorazd Srbljak v Peter Nagy | 3-6,6-4,7-5 |
| ITF M15 Telavi | 2021/08/04 08:45 | Evgeny Philippov v Gabriel Donev | 2-6,3-6 |
| ITF M15 Telavi | 2021/08/03 09:45 | Martin Borisiouk v Gabriel Donev | 3-6,2-6 |
| ITF M15 Novi Sad | 2021/07/30 08:00 | Gabriel Donev v Juan Pablo Paz | 4-6,5-7 |
| ITF M15 Novi Sad | 2021/07/29 09:25 | Gabriel Donev v Gorazd Srbljak | 6-2,6-4 |
| ITF M15 Novi Sad | 2021/07/28 11:10 | Ivan Nedelko v Gabriel Donev | 4-6,1-6 |
| ITF M15 Novi Sad | 2021/07/26 09:00 | Gabriel Donev v Dusan Rajic | 6-2,6-2 |
| ITF M15 Novi Sad | 2021/07/25 12:00 | Gabriel Donev v Besir Durguti | 6-1,6-1 |
| ITF M15 Sofia | 2021/07/09 08:30 | Gabriel Donev v Alexander Weis | 6-4,3-6,6-7 |