Stadium: MTA 13 Round: 62 Ground: Clay
| ITF M15 Novomoskovsk | 2021/06/04 08:30 | Yurii Dzhavakian v Oleg Prihodko | 1-6,6-4,12-10 |
| ITF M15 Novomoskovsk | 2021/06/03 16:00 | Oleg Prihodko v Dzianis Zharyn | 6-2,6-1 |
| ITF M15 Novomoskovsk | 2021/05/26 13:05 | Oleg Prihodko v Wojciech Marek | 4-6,7-6,3-6 |
| ITF M25 Vic | 2021/05/17 08:00 | Oleg Prihodko v Facundo Juarez | 7-6,1-6,7-10 |
| ITF M25 Vic | 2021/05/16 07:00 | Oleg Prihodko v Jordi Mas De Ugarte | 6-2,6-0 |
| ITF M15 Valldoreix | 2021/05/11 08:00 | Nicolas Alvarez Varona v Oleg Prihodko | 6-7,6-4,11-9 |
| ITF M15 Valldoreix | 2021/05/10 08:00 | Diego F Flores v Oleg Prihodko | 1-6,6-4,11-13 |
| ITF M15 Valldoreix | 2021/05/09 12:00 | Pedro Iamachkine v Oleg Prihodko | 0-6,3-6 |
| ITF M15 Brcko | 2021/05/21 13:25 | Aleksandar Tomas v Viktor Jovic | 0-6,1-6 |
| ITF M15 Brcko | 2021/05/21 09:45 | Bogdan Bajic v Aleksandar Tomas | 1-6,3-6 |
| ITF M15 Brcko | 2021/05/18 14:00 | Obrad Markovski v Aleksandar Tomas | 4-6,1-6 |
| ITF M15 Brcko | 2021/05/18 08:15 | Aleksandar Tomas v Lukas Palovic | 0-6,7-6,10-5 |
| ITF M15 Brcko | 2021/05/16 09:30 | Dragan Peric v Aleksandar Tomas | 0-6,0-6 |
| ITF M15 Prijedor | 2021/05/14 09:00 | Hamad Medjedovic v Aleksandar Tomas | 6-0,6-3 |
| ITF M15 Prijedor | 2021/05/13 09:50 | Tomislav Jotovski v Aleksandar Tomas | 3-6,2-6 |
| ITF M15 Sibenik | 2021/04/18 08:00 | Aleksandar Tomas v Christian Sigsgaard | 2-6,7-6,2-10 |