Stadium: Court 3 Round: 54 Ground: Hardcourt indoor
| ITF - M15 Shymkent | 2021/05/31 05:00 | Bogdan Seleznev v Saba Purtseladze | 2-6,1-6 |
| ITF - M15 Shymkent | 2021/05/24 05:20 | Antonio Campo v Bogdan Seleznev | 6-0,6-1 |
| ITF - M15 St Petersburg - Calificari | 2021/02/07 07:00 | Andrea Guerrieri v Bogdan Seleznev | 6-2,6-1 |
| ITF - M15 St Petersburg | 2021/01/31 09:45 | Bogdan Seleznev v Mikhail Fufygin | 0-6,0-6 |
| ITF - M15 Sozopol | 2021/09/12 10:00 | Mert Ramadan v Klim Kozyrev | 7-6,6-2 |
| ITF - M15 St Petersburg | 2021/04/04 09:50 | Sarp Agabigun v Klim Kozyrev | 6-3,6-0 |
| ITF - M15 Kazan | 2021/03/08 06:50 | Klim Kozyrev v Maxim Krapivin | 3-6,7-5,4-10 |
| ITF - M15 Antalya | 2020/12/06 07:00 | Klim Kozyrev v Emir Sendogan | 1-6,3-6 |
| ITF - M15 Antalya | 2020/11/29 06:00 | Klim Kozyrev v Suleyman Deniz Gursoy | 4-6,4-6 |
| ITF - M15 Kazan | 2020/03/09 09:10 | Klim Kozyrev v Viktor Nikitin | 3-6,6-4,10-12 |
| ITF - M25 Aktobe | 2020/02/17 05:00 | Klim Kozyrev v Aliaksandr Bulitski | 5-7,3-6 |
| ITF M25 Almaty | 2019/09/23 04:00 | Vladislav Sveridenko v Klim Kozyrev | 6-2,2-6,10-3 |