Stadium: MTA 12 Round: 62 Ground: Clay
| Eastern European Championship | 2020/12/22 13:05 | Marat Deviatiarov v Gabriel Donev | 6-2,4-6,6-4 |
| Eastern European Championship | 2020/12/21 12:30 | Luka Pavlovic v Gabriel Donev | 6-2,6-2 |
| Eastern European Championship | 2020/12/17 08:00 | Aziz Kijametovic v Gabriel Donev | 1-6,4-6 |
| Eastern European Championship | 2020/12/16 08:00 | Dragos Nicolae Madaras v Gabriel Donev | 2-6,2-6 |
| Eastern European Championship | 2020/12/15 08:00 | Marat Deviatiarov v Gabriel Donev | 6-3,7-5 |
| Eastern European Championship | 2020/12/14 08:00 | Gabriel Donev v Tomislav Jotovski | 4-6,6-2,6-2 |
| ITF M15 Antalya | 2020/12/09 06:30 | Gabriel Donev v Georgii Kravchenko | 6-7,6-4,2-6 |
| ITF M15 Antalya | 2020/12/08 07:30 | Mert Naci Turker v Gabriel Donev | 4-6,1-6 |
| ITF M15 Benicarlo | 2020/11/23 14:00 | Oleg Prihodko v Max Alcala Gurri | 4-6,5-7 |
| ITF M15 Benicarlo | 2020/11/23 08:30 | Oleg Prihodko v Miguel Perez Pena | 6-1,6-2 |
| ITF M15 Benicarlo | 2020/11/22 09:30 | Oleg Prihodko v Inigo G Olasagasti | 7-6,6-1 |
| ITF M15 Novomoskovsk | 2020/09/02 09:55 | Ivan Sergeyev v Oleg Prihodko | 7-6,6-2 |
| UTF Invitational | 2020/06/11 08:30 | Oleg Prihodko v Viacheslav Bielinskyi | 1-6,6-7 |
| UTF Invitational | 2020/06/10 09:00 | Vladyslav Orlov v Oleg Prihodko | 2-6,0-1 |
| UTF Invitational | 2020/06/09 07:00 | Nikita Mashtakov v Oleg Prihodko | 6-3,5-1 |
| ITF M25 Murcia | 2020/03/04 08:55 | Oleg Prihodko v Oriol Roca Batalla | 3-6,3-6 |