| UTR Pro Tennis Series Pazardzhik | 2021/07/14 09:00 | Arthus De La Bassetiere v Valentin Vanta | 3-6,1-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/13 07:30 | Arthus De La Bassetiere v Yurii Dzhavakian | 6-3,3-6,2-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/12 10:30 | Petr Nesterov v Arthus De La Bassetiere | 6-3,7-5 |
| UTR Pro Tennis Series Zadar | 2021/07/03 09:30 | Arthus De La Bassetiere v Constant De La Bassetiere | 0-6,3-6 |
| UTR Pro Tennis Series Zadar | 2021/07/01 14:00 | Arthus De La Bassetiere v Bozo Barun | 7-6,6-2 |
| UTR Pro Tennis Series Zadar | 2021/06/30 11:00 | Arthus De La Bassetiere v Deni Zmak | 2-6,3-5 |
| UTR Pro Tennis Series Zadar | 2021/06/29 08:00 | Arthus De La Bassetiere v Vito Tonejc | 6-7,2-6 |
| UTR Pro Tennis Series Zadar | 2021/06/28 09:30 | Arthus De La Bassetiere v Ihor Dudun | 3-6,6-1,6-1 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/15 06:00 | Yurii Dzhavakian v Alexander Lazov | 1-6,2-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/13 07:30 | Petr Nesterov v Alexander Lazov | 6-4,5-3 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/12 10:30 | Alexander Lazov v Valentin Vanta | 7-6,2-6,4-6 |
| UTR Pro Tennis Series Beograd | 2021/07/08 14:15 | Giacomo Revelli v Alexander Lazov | 4-6,6-1,5-2 |
| UTR Pro Tennis Series Beograd | 2021/07/07 07:30 | Dusan Milanovic v Alexander Lazov | 1-6,6-4,4-6 |
| UTR Pro Tennis Series Beograd | 2021/07/05 10:30 | Alex Kuperstein v Alexander Lazov | 6-4,7-5 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/11 10:00 | Alexander Lazov v Constant De La Bassetiere | 5-7,1-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/10 13:30 | Alexander Lazov v Aristotelis Thanos | 6-4,5-4 |