Stadium: Court 1 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Sozopol | 2021/09/15 10:00 | Tommaso Compagnucci v Mehdi Sadaoui | 6-3,6-1 |
| ITF M15 Sozopol | 2021/09/14 07:00 | Tommaso Compagnucci v Caspar Schuetze | 6-1,6-2 |
| ITF M15 Sozopol | 2021/09/13 10:30 | Tommaso Compagnucci v Ivan Penev | 6-2,6-3 |
| ITF M15 Chornomorsk | 2021/09/02 09:55 | Tommaso Compagnucci v Oleg Prihodko | 0-6,6-7 |
| ITF M15 Chornomorsk | 2021/09/01 10:10 | Grigoriy Lomakin v Tommaso Compagnucci | 6-7,6-4,2-6 |
| ITF M15 Lodz | 2021/08/19 10:00 | Tommaso Compagnucci v Gilbert S K Junior | 4-6,2-6 |
| ITF M15 Lodz | 2021/08/18 08:00 | Filip Bergevi v Tommaso Compagnucci | 6-7,6-4,6-7 |
| ITF M15 Lodz | 2021/08/16 11:30 | Tommaso Compagnucci v Max Basing | 7-5,6-1 |
| ITF M15 Sozopol | 2021/09/15 07:00 | Petr Nesterov v Caspar Schuetze | 6-1,6-3 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/15 06:00 | Petr Nesterov v Valentin Vanta | 6-2,6-3 |
| UTR Pro Tennis Series Pazardzhik | 2021/07/14 09:00 | Petr Nesterov v Yurii Dzhavakian | 7-6,6-4 |
| 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 | Petr Nesterov v Arthus De La Bassetiere | 6-3,7-5 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/09 12:30 | Petr Nesterov v Ilya Snitari | 2-6,3-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/08 10:00 | Petr Nesterov v Pierre Faivre | 2-6,7-6,4-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/07 13:45 | Thomas Laurent v Petr Nesterov | 6-1,3-6,6-2 |