Stadium: Centre Court Round: 27 Ground: Clay
| ITF M15 Irpin | 2019/05/30 08:00 | Denis Yevseyev v Oleg Prihodko | 6-4,6-4 |
| ITF M15 Chornomorsk | 2021/09/02 07:00 | Denis Yevseyev v Gabriele Maria Noce | 6-0,6-4 |
| ITF M15 Chornomorsk | 2021/08/30 10:30 | Denis Yevseyev v Alessio Zanotti | 6-1,6-3 |
| Challenger Liberec | 2021/08/02 08:30 | Nikola Milojevic v Denis Yevseyev | 6-4,6-1 |
| Challenger Liberec | 2021/08/01 12:30 | Denis Yevseyev v Franco Agamenone | 6-4,2-6,6-4 |
| Challenger Trieste | 2021/07/25 17:30 | Orlando Luz v Denis Yevseyev | 5-7,7-6,6-3 |
| Challenger Nur-Sultan | 2021/07/20 05:20 | Denis Yevseyev v Jesper De Jong | 6-4,0-6,3-6 |
| Challenger Nur-Sultan | 2021/07/13 05:45 | Mirza Basic v Denis Yevseyev | 6-3,6-3 |
| Challenger Salzburg | 2021/07/06 16:35 | Denis Yevseyev v Pablo Cuevas | 5-7,3-6 |
| ITF M15 Chornomorsk | 2021/09/02 09:55 | Tommaso Compagnucci v Oleg Prihodko | 0-6,6-7 |
| ITF M15 Chornomorsk | 2021/08/31 08:35 | Vlad Andrei Dancu v Oleg Prihodko | 3-6,1-6 |
| ITF M25 Bacau | 2021/08/17 11:15 | Pedro Sakamoto v Oleg Prihodko | 6-3,6-1 |
| ITF M15 Telavi | 2021/08/07 06:30 | Oleg Prihodko v Yan Bondarevskiy | 7-6,6-3 |
| ITF M15 Telavi | 2021/08/06 06:30 | Yanki Erel v Oleg Prihodko | 6-3,3-6,5-7 |
| ITF M15 Telavi | 2021/08/05 06:30 | Julian Cash v Oleg Prihodko | 1-6,5-7 |
| ITF M15 Telavi | 2021/08/04 06:30 | Alessandro Ingarao v Oleg Prihodko | 0-6,5-7 |
| ITF M15 Telavi | 2021/08/03 11:10 | Roman Andres Burruchaga v Oleg Prihodko | 1-6,4-6 |