stadio: COURT 7 Round: 28 Ground: Hardcourt indoor
| ITF M15 San Pietroburgo | 2021/02/07 08:00 | Alexey Zakharov v Alibek Kachmazov | 4-6,7-5,4-6 |
| 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 San Pietroburgo | 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 |
| Challenger Nur-Sultan | 2021/02/21 07:05 | Grigoriy Lomakin v Alexey Zakharov | 2-6,3-6 |
| ITF M15 San Pietroburgo | 2021/02/10 07:00 | Matic Spec v Alexey Zakharov | 4-6,6-1,6-3 |
| ITF M15 San Pietroburgo | 2021/02/07 08:00 | Alexey Zakharov v Alibek Kachmazov | 4-6,7-5,4-6 |
| ITF M15 Kazan | 2021/03/12 09:40 | Ivan Gakhov v Alibek Kachmazov | 3-6,7-6,3-6 |
| ITF M15 Kazan | 2021/03/11 11:55 | Alibek Kachmazov v Alexander Stepin | 6-4,6-3 |
| ITF M15 Kazan | 2021/03/10 14:50 | Alibek Kachmazov v Egor Noskin | 6-2,6-1 |
| Challenger Nur-Sultan | 2021/03/03 06:05 | James Duckworth v Alibek Kachmazov | 6-4,5-7,7-5 |
| Challenger Nur-Sultan | 2021/03/01 06:15 | Ulises Blanch v Alibek Kachmazov | 2-6,6-4,3-6 |
| ITF M15 San Pietroburgo | 2021/02/10 10:40 | Alibek Kachmazov v Marat Deviatiarov | 2-6,4-6 |
| ITF M15 San Pietroburgo | 2021/02/07 08:00 | Alexey Zakharov v Alibek Kachmazov | 4-6,7-5,4-6 |
| ITF M15 San Pietroburgo | 2021/02/06 08:00 | Alibek Kachmazov v Konstantin Kravchuk | 6-3,6-3 |