| 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 Pazardzhik | 2021/07/14 10:30 | Adriano Dzhenev v Dmitrii Vasilev | 6-1,7-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/12 09:00 | Yanais Laurent v Dmitrii Vasilev | 2-6,6-2,6-3 |
| ITF M15 Sofia | 2021/07/07 06:50 | Dmitrii Vasilev v Leonid Sheyngezikht | 0-6,2-6 |
| ITF M15 Antalya | 2021/06/13 07:30 | Pietro Marino v Dmitrii Vasilev | 6-1,6-1 |
| ITF M15 Antalya | 2021/06/07 13:25 | Daniel Antonio Nunez v Dmitrii Vasilev | 6-1,6-1 |
| ITF M15 Skopje | 2021/06/06 13:30 | Dmitrii Vasilev v Taiyo Yamanaka | 3-6,6-7 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/16 07:30 | Petyr Kardzhiev v Denislav Prodanov | 0-6,1-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/14 06:00 | Petyr Kardzhiev v Ilya Snitari | 0-6,0-6 |