Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Nur-Sultan | 2021/07/06 07:55 | Tashbulatov, Dostanbek v Bezborodov, Dmitry | 6-2,6-1 |
| Challenger Almaty | 2021/06/14 08:40 | Joao Menezes v Tashbulatov, Dostanbek | 6-2,6-0 |
| Challenger Almaty | 2021/06/06 06:35 | Tashbulatov, Dostanbek v Vladyslav Orlov | 0-6,1-6 |
| ITF - M15 Shymkent | 2021/06/03 05:00 | Grigoriy Lomakin v Tashbulatov, Dostanbek | 6-2,6-4 |
| ITF - M15 Shymkent | 2021/06/02 05:00 | Tashbulatov, Dostanbek v Jack Gibbens | 6-2,6-3 |
| ITF - M15 Shymkent | 2021/05/25 09:15 | Tashbulatov, Dostanbek v Wang, Tak Khunn | 1-6,0-6 |
| ITF - M15 Shymkent | 2021/04/15 06:30 | Tashbulatov, Dostanbek v Luca Tomasetto | 4-6,4-6 |
| ITF - M15 Shymkent | 2021/04/14 07:00 | Mark Whitehouse v Tashbulatov, Dostanbek | 4-6,4-6 |
| ITF M25 Nur-Sultan | 2021/07/07 07:00 | Kalovelonis, Markos v Lucas Catarina | 6-4,6-7,2-6 |
| ITF M25 Bakio | 2021/07/01 14:10 | Lucas Catarina v Miguel Damas | 6-3,4-6,6-7 |
| ITF M25 Bakio | 2021/06/30 12:35 | Lucas Catarina v Juan Bautista Otegui | 4-6,7-5,6-0 |
| Coupe Davis | 2021/06/19 10:00 | Petros Chrysochos v Lucas Catarina | 4-6,6-3,6-3 |
| Coupe Davis | 2021/06/17 09:30 | Lucas Catarina v Carr, Simon | 4-6,4-6 |
| Coupe Davis | 2021/06/16 09:05 | Lucas Catarina v Liam Delicata | 6-0,6-1 |
| ITF M15 Helsinki | 2021/06/05 07:00 | Lucas Catarina v Lilian Marmousez | 3-6,3-6 |
| ITF M15 Helsinki | 2021/06/04 07:00 | Lucas Catarina v Clement Tabur | 4-6,7-5,6-3 |