| UTR Pro Tennis Series Pazardzhik | 2021/04/05 11:30 | Lazov, Alexander v Yanais Laurent | 0-6,6-1,6-4 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/16 10:30 | Arthus De La Bassetiere v Lazov, Alexander | 6-4,1-6,3-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/15 06:00 | Dzhavakian, Yurii v Lazov, Alexander | 1-6,2-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/13 07:30 | Petr Nesterov v Lazov, Alexander | 6-4,5-3 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/12 10:30 | Lazov, Alexander v Valentin Vanta | 7-6,2-6,4-6 |
| UTR Pro Tennis Series Beograd | 2021/07/08 14:15 | Giacomo Revelli v Lazov, Alexander | 4-6,6-1,5-2 |
| UTR Pro Tennis Series Beograd | 2021/07/07 07:30 | Milanovic, Dusan v Lazov, Alexander | 1-6,6-4,4-6 |
| UTR Pro Tennis Series Beograd | 2021/07/05 10:30 | Alex Kuperstein v Lazov, Alexander | 6-4,7-5 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/11 10:00 | Lazov, Alexander v de La Bassetiere, Constant | 5-7,1-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/16 09:00 | Adriano Dzhenev v Yanais Laurent | 6-0,6-1 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/15 07:30 | Kolisnyk, Olexiy v Yanais Laurent | 6-4,3-6,6-4 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/13 06:00 | Anthony Genov v Yanais Laurent | 0-6,3-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/12 09:00 | Yanais Laurent v Dmitrii Vasilev | 2-6,6-2,6-3 |
| UTR Pro Tennis Series Beograd | 2021/07/11 07:00 | Yanais Laurent v Slavic, Nikola | 3-6,4-5 |
| UTR Pro Tennis Series Beograd | 2021/07/09 12:00 | Yanais Laurent v Luka Pavlovic | 3-6,2-5 |
| UTR Pro Tennis Series Beograd | 2021/07/08 07:30 | Yanais Laurent v Borza, Bogdan | 6-1,3-6,2-6 |
| UTR Pro Tennis Series Beograd | 2021/07/07 09:00 | Petar Teodorovic v Yanais Laurent | 2-6,1-6 |