Stadium: Court 4 Round: 62 Ground: Clay
| 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 |
| ITF M15 Sofia | 2021/07/08 11:40 | Simeon Terziev v Gabriel Donev | 1-6,6-4,0-6 |
| ITF M15 Sofia | 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 Novi Sad | 2021/07/26 09:00 | Valerio Aboian v Peter Makk | 6-4,3-6,10-3 |
| ITF M15 Novi Sad | 2021/07/25 10:45 | Maxim Krapivin v Valerio Aboian | 2-6,0-6 |
| ITF M15 Cordoba | 2021/04/08 13:00 | Luciano Darderi v Valerio Aboian | 7-5,6-4 |
| ITF M15 Cordoba | 2021/04/07 13:30 | Valerio Aboian v Ignacio Carou | 6-2,6-0 |
| ITF M15 Cordoba | 2021/04/06 12:00 | Gonzalo Villanueva v Valerio Aboian | 6-7,3-6 |
| ITF M15 Cordoba | 2021/04/05 14:00 | Federico Pieckenstainer v Valerio Aboian | 2-6,2-6 |
| ITF M15 Villa Maria | 2021/03/30 15:30 | Valerio Aboian v Hernan Casanova | 4-6,3-6 |
| ITF M25 Hurlingham | 2020/03/02 13:00 | Valerio Aboian v Alex Barrena | 7-6,3-6,6-10 |