Stadium: Court 3 Round: 27 Ground: Hardcourt indoor
| ITF M15 St Petersburg | 2021/04/04 11:00 | Alexander Vasilenko v Victor Gurevich | 6-0,6-0 |
| ITF M15 St Petersburg | 2021/02/13 08:00 | Alexander Vasilenko v Andrey Kuznetsov | 3-6,3-6 |
| ITF M15 St Petersburg | 2021/02/12 08:30 | Alexander Vasilenko v Matic Spec | 6-2,1-6,6-3 |
| ITF M15 St Petersburg | 2021/02/11 09:50 | Alexander Vasilenko v Vladimir Ivanov | 6-2,6-0 |
| ITF M15 St Petersburg | 2021/02/09 08:30 | Bogdan Bobrov v Alexander Vasilenko | 6-4,2-6,4-6 |
| ITF M15 St Petersburg | 2021/02/08 08:30 | Alexander Vasilenko v Vladislav Ivanov | 6-4,6-2 |
| ITF M15 St Petersburg Qual | 2021/02/07 15:00 | Alexander Vasilenko v Ivan Abramov | 6-1,6-0 |
| ITF M15 St Petersburg | 2021/02/04 09:35 | Alexander Vasilenko v Konstantin Kravchuk | 4-6,4-6 |
| ITF M15 Kazan | 2021/11/24 13:55 | Timur Kiyamov v Aliaksandr Liaonenka | 6-1,6-2 |
| ITF M25 Nur-Sultan | 2021/10/27 06:25 | Ivan Denisov v Aliaksandr Liaonenka | 6-3,6-4 |
| ITF M25 Nur-Sultan | 2021/10/26 05:00 | Aliaksandr Liaonenka v Ivan Zaytsev | 6-4,6-4 |
| ITF M25 Nur-Sultan | 2021/10/25 05:00 | Aliaksandr Liaonenka v Aleksandr Lobanov | 6-4,6-2 |
| ITF M25 Nur-Sultan | 2021/10/20 10:20 | Grigoriy Lomakin v Aliaksandr Liaonenka | 6-1,6-4 |
| ITF M15 Kazan | 2021/10/14 08:30 | Sanjar Fayziev v Aliaksandr Liaonenka | 6-0,6-3 |
| ITF M15 Kazan | 2021/10/13 11:30 | Aliaksandr Liaonenka v Alexandr Binda | 7-6,6-2 |
| ITF M15 Ulcinj | 2021/09/13 08:00 | Danilo Raicevic v Aliaksandr Liaonenka | 6-2,7-5 |