Stadium: Court 20 Round: 62 Ground: Clay
| ITF - M15 Antalya | 2021/11/02 08:30 | Rrezart Cungu v Dmitrii Vasilev | 6-3,6-3 |
| ITF - M15 Kazan | 2021/10/11 10:40 | Dmitrii Vasilev v Danil Spasibo | 3-6,4-6 |
| ITF - M15 Lodz | 2021/08/16 09:30 | Aristotelis Thanos v Dmitrii Vasilev | 7-6,6-0 |
| ITF - M15 Lodz | 2021/08/15 08:00 | Maciej Kos v Dmitrii Vasilev | 6-4,3-6,9-11 |
| UTR Pro Tennis Series - Pazardzhik | 2021/07/18 07:30 | Dmitrii Vasilev v Vladimir Popov | 2-6,1-5 |
| UTR Pro Tennis Series - Pazardzhik | 2021/07/17 10:30 | Dmitrii Vasilev v Petyr Kardzhiev | 6-0,6-4 |
| UTR Pro Tennis Series - Pazardzhik | 2021/07/16 09:00 | Olexiy Kolisnyk v Dmitrii Vasilev | 6-3,6-4 |
| UTR Pro Tennis Series - Pazardzhik | 2021/07/15 07:58 | Plamen Milushev v Dmitrii Vasilev | 6-1,6-0 |
| UTR Pro Tennis Series - Nis | 2021/10/10 08:00 | Oleksandr Bielinskyi v Egor Novikov | 6-2,5-3 |
| UTR Pro Tennis Series - Nis | 2021/10/09 09:58 | Oleksandr Bielinskyi v George Botezan | 6-7,6-4,6-2 |
| UTR Pro Tennis Series - Nis | 2021/10/08 16:45 | Lawrence Bataljin v Oleksandr Bielinskyi | 7-5,5-7,0-5 |
| UTR Pro Tennis Series - Nis | 2021/10/07 07:00 | Ivan Liutarevich v Oleksandr Bielinskyi | 5-7,6-4,5-2 |
| UTR Pro Tennis Series - Nis | 2021/10/06 08:30 | Stefan Ivic v Oleksandr Bielinskyi | 4-6,6-2,6-0 |
| UTR Pro Tennis Series - Nis | 2021/10/04 08:30 | Veljko Krstic v Oleksandr Bielinskyi | 5-7,6-1,6-3 |
| UTR Pro Tennis Series Barcelona | 2021/09/27 12:30 | Oleksandr Bielinskyi v Noah Lopez | 6-3,4-5 |
| UTR Pro Tennis Series - Mulheim | 2021/09/25 13:43 | Oleksandr Bielinskyi v Buvaysar Gadamauri | 6-7,6-7 |