Stadium: Court 4 Round: 25 Ground: Hardcourt indoor
| ITF Ukraine F1 | 2015/05/13 07:30 | Marat Deviatiarov v Maxim Ratniuk | 7-5,6-3 |
| ITF Turkey F3 | 2015/02/27 07:00 | Maxim Ratniuk v Marat Deviatiarov | 6-4,2-6,8-10 |
| ITF M15 St Petersburg | 2021/04/08 07:00 | Maxim Ratniuk v Artem Dubrivnyy | 2-6,1-6 |
| ITF M15 St Petersburg | 2021/04/05 08:30 | Maxim Ratniuk v Timur Kiyamov | 6-4,6-7,12-10 |
| ITF M15 St Petersburg | 2021/04/04 07:00 | Maxim Ratniuk v Maksim Starostin | 6-4,6-0 |
| ITF M15 Kazan | 2021/03/11 08:00 | Alexandr Binda v Maxim Ratniuk | 4-6,6-3,6-4 |
| ITF M15 Kazan | 2021/03/10 13:40 | Maxim Ratniuk v Alexander Zhurbin | 6-0,6-3 |
| ITF M15 St Petersburg | 2021/02/10 06:50 | Artem Dubrivnyy v Maxim Ratniuk | 6-2,6-3 |
| ITF M15 St Petersburg | 2021/02/08 10:05 | Maxim Ratniuk v Evgeny Philippov | 6-3,6-3 |
| ITF M15 St Petersburg - Kval | 2021/02/07 15:30 | Maxim Ratniuk v Alexander Ovcharov | 6-1,6-3 |
| ITF M15 Sharm El Sheikh | 2021/03/31 09:50 | Marat Deviatiarov v Alessandro Bega | 0-6,3-6 |
| ITF M15 Sharm El Sheikh | 2021/03/25 07:30 | Marat Deviatiarov v Makoto Ochi | 6-7,3-6 |
| ITF M15 Sharm El Sheikh | 2021/03/24 07:30 | Marat Deviatiarov v Babji Siva Atturu | 6-2,6-0 |
| ITF M15 Sharm El Sheikh | 2021/03/17 07:30 | Marat Deviatiarov v Petros Chrysochos | 3-6,2-6 |
| ITF M15 Kazan | 2021/03/10 11:30 | Alexander Stepin v Marat Deviatiarov | 6-4,7-5 |
| ITF M15 St Petersburg | 2021/02/11 12:55 | Jan Choinski v Marat Deviatiarov | 6-4,6-7,6-1 |
| ITF M15 St Petersburg | 2021/02/10 10:40 | Alibek Kachmazov v Marat Deviatiarov | 2-6,4-6 |
| ITF M15 St Petersburg | 2021/02/04 11:45 | Marat Deviatiarov v Ivan Gakhov | 6-1,2-6,3-6 |