Stadium: Court 6 Round: 25 Ground: Hardcourt indoor
| 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 10:15 | Egor Noskin v Pavel Verbin | 6-3,6-2 |
| ITF M15 St Petersburg | 2021/04/04 10:40 | Yannik Steinegger v Egor Noskin | 6-1,6-4 |
| ITF M15 Kazan | 2021/03/10 14:50 | Alibek Kachmazov v Egor Noskin | 6-2,6-1 |
| ITF M15 Kazan | 2021/03/09 06:50 | Egor Noskin v Danil Spasibo | 6-2,6-4 |
| ITF M15 Kazan | 2021/03/08 10:55 | Egor Noskin v Ilya Lebedev | 6-2,6-1 |
| ITF M15 St Petersburg | 2021/02/08 07:00 | Alexander Cozbinov v Egor Noskin | 3-6,6-0,10-5 |
| ITF M15 St Petersburg Qual | 2021/02/07 10:20 | Danil Spasibo v Egor Noskin | 2-6,3-6 |
| ITF M15 St Petersburg | 2021/04/08 10:45 | Sarp Agabigun v Alexey Zakharov | 6-2,6-4 |
| ITF M15 St Petersburg | 2021/04/07 07:00 | Naoki Tajima v Alexey Zakharov | 3-6,6-1,3-6 |
| ITF M15 Kazan | 2021/03/13 08:00 | Alexey Zakharov v Alibek Kachmazov | 7-5,6-3 |
| ITF M15 Kazan | 2021/03/12 09:05 | Alexey Zakharov v Alexandr Binda | 6-2,7-6 |
| ITF M15 Kazan | 2021/03/11 08:00 | Alexey Zakharov v Yaraslav Shyla | 6-3,6-2 |
| ITF M15 Kazan | 2021/03/09 12:15 | Alexey Zakharov v Igor Kudriashov | 4-6,6-2,6-3 |
| Challenger St. Petersburg | 2021/02/28 09:20 | Alessandro Bega v Alexey Zakharov | 6-4,6-2 |
| Challenger Nur-Sultan | 2021/02/22 04:00 | Pavel Kotov v Alexey Zakharov | 7-5,1-6,6-3 |