Estádio: Court 6 Round: 62 Ground: Clay
| ITF - M15 Sófia | 2021/07/09 08:30 | Gabriel Donev v Alexander Weis | 6-4,3-6,6-7 |
| ITF - M15 Sófia | 2021/07/08 11:40 | Simeon Terziev v Gabriel Donev | 1-6,6-4,0-6 |
| ITF - M15 Sófia | 2021/07/07 08:50 | Mattia Frinzi v Gabriel Donev | 5-7,2-6 |
| ITF - M15 Novomoskovsk | 2021/06/03 11:45 | Alexander Zgirovsky v Gabriel Donev | 6-2,3-6,10-8 |
| ITF - M15 Novomoskovsk | 2021/05/31 06:15 | Gabriel Donev v Denis Parshutin | 6-0,6-4 |
| ITF - M15 Novomoskovsk | 2021/05/31 06:15 | Gabriel Donev v Roman Boychuk | 6-1,6-0 |
| ITF - M15 Novomoskovsk | 2021/05/26 09:05 | Ivan Nedelko v Gabriel Donev | 6-3,6-4 |
| ITF - M15 Novomoskovsk | 2021/05/25 08:45 | Gabriel Donev v Alexander Zgirovsky | 6-4,6-2 |
| ITF - M15 Skopje | 2021/05/31 11:00 | Besir Durguti v Taiyo Yamanaka | 2-6,2-6 |
| ITF - M15 Brcko | 2021/05/17 15:30 | Besir Durguti v Dusan Milanovic | 3-6,2-6 |
| ITF - M15 Prijedor | 2021/05/09 07:00 | Rimpei Kawakami v Besir Durguti | 6-3,6-2 |
| ITF - M15 Antália | 2021/03/08 10:00 | Federico Bertuccioli v Besir Durguti | 6-3,3-6,10-7 |
| ITF - M15 Antália | 2021/02/28 08:00 | Besir Durguti v Mathys Erhard | 1-6,3-6 |
| ITF - M15 Antália | 2020/03/09 08:00 | Sergi Perez Contri v Besir Durguti | 6-2,6-2 |
| ITF - M15 Antália | 2020/03/08 08:00 | Enes Donmezer v Besir Durguti | 0-2 |
| ITF - M15 Antália | 2020/03/01 07:00 | Besir Durguti v Daniil Savelev | 6-0,6-0 |