Stadion: Court 3 Round: 54 Ground: Hardcourt outdoor
| ITF - M25 - Nur-Sultan | 2021/10/21 05:00 | Filip Peliwo v Petr Bar Biryukov | 3-6,7-5,6-3 |
| ITF - M25 - Nur-Sultan | 2021/10/20 07:50 | Yan Sabanin v Petr Bar Biryukov | 4-6,6-7 |
| ITF - M25 - Nur-Sultan | 2021/10/18 09:00 | Petr Bar Biryukov v Mykyta Riepkin | 6-2,6-3 |
| ITF - M15 - Kazan | 2021/10/13 10:05 | Ivan Liutarevich v Petr Bar Biryukov | 2-6,7-5,6-1 |
| ITF - M15 - Telavi | 2021/08/02 08:00 | Petr Bar Biryukov v Giorgi Javakhishvili | 7-6,4-6,9-11 |
| ITF - M25 - Telawi | 2021/07/26 13:10 | Petr Bar Biryukov v Ondrej Horak | 4-6,2-6 |
| ITF - M25 - Nur-Sultan | 2021/07/09 07:00 | Petr Bar Biryukov v Beibit Zhukayev | 4-6,3-6 |
| ITF - M25 - Nur-Sultan | 2021/07/08 05:00 | Petr Bar Biryukov v Vladyslav Manafov | 3-6,6-2,6-3 |
| ITF - M25 - Nur-Sultan | 2021/10/18 09:05 | Yerassyl Murat v Klim Kozyrev | 6-3,0-6,5-10 |
| ITF - M25 - Nur-Sultan | 2021/07/06 06:20 | Oleksii Krutykh v Yerassyl Murat | 6-3,6-3 |
| ITF - M15 - Shymkent | 2021/06/02 08:25 | Yerassyl Murat v Grigoriy Lomakin | 6-7,6-7 |
| ITF - M15 - Shymkent | 2021/05/25 10:45 | Yerassyl Murat v Ivan Liutarevich | 5-7,0-6 |
| ITF - M15 - Shymkent | 2021/04/12 05:35 | Yerassyl Murat v Antonio Campo | 2-6,1-6 |
| ITF - M15 - Shymkent | 2021/04/05 06:50 | Bulat Galiev v Yerassyl Murat | 6-3,7-6 |
| ITF - M15 - Nur-Sultan | 2021/02/08 06:00 | Yaraslav Shyla v Yerassyl Murat | 6-4,6-4 |
| ITF - M15 - Nur-Sultan | 2021/02/01 05:00 | Matteo Arnaldi v Yerassyl Murat | 6-2,6-3 |