Stadium: Court 1 Round: 44 Ground: Clay
| ITF M15 St Petersburg | 2021/04/12 08:35 | Egor Noskin v Aliaksandr Liaonenka | 6-4,6-2 |
| ITF M15 St Petersburg Qual | 2021/04/11 07:00 | Maxim Krapivin v Aliaksandr Liaonenka | 3-6,3-6 |
| ITF M15 St Petersburg | 2021/04/04 13:15 | Dominik Recek v Aliaksandr Liaonenka | 6-4,6-2 |
| ITF M15 Monastir | 2021/03/24 08:30 | Youcef Rihane v Aliaksandr Liaonenka | 6-4,3-6,6-3 |
| ITF M15 Monastir | 2021/03/22 12:30 | Stefano Battaglino v Aliaksandr Liaonenka | 5-7,6-3,7-10 |
| ITF M15 Monastir | 2021/03/22 08:00 | Maikel De Boes v Aliaksandr Liaonenka | 5-7,2-6 |
| ITF M15 Monastir | 2021/03/21 13:00 | Louis Allen v Aliaksandr Liaonenka | 3-6,1-6 |
| ITF M15 Nur-Sultan | 2021/02/09 04:00 | Giacomo Dambrosi v Aliaksandr Liaonenka | 6-4,6-2 |