Stadium: Hard 20 Round: 25 Ground: Hardcourt outdoor
| ITF - Sozopol M15 | 2021/10/14 15:40 | Ben Patael v Petr Nesterov | 6-4,3-6,10-6 |
| ITF - Sozopol M15 | 2021/10/13 10:00 | Simon A Ivanov v Petr Nesterov | 3-6,2-6 |
| ITF - Sozopol M15 | 2021/10/05 10:00 | Alexandar Lazarov v Petr Nesterov | 6-1,6-1 |
| ITF - Sozopol M15 | 2021/09/16 10:05 | Tommaso Compagnucci v Petr Nesterov | 6-2,6-0 |
| ITF - Sozopol M15 | 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 |
| ITF - Selva Gardena M15 | 2021/10/25 13:05 | Tim Handel v Alessandro Ragazzi | 7-5,6-2 |
| ITF - Sharm El Sheikh M15 | 2021/10/07 11:00 | Alan Bojarski v Alessandro Ragazzi | 3-6,4-6 |
| ITF - Sharm El Sheikh M15 | 2021/10/06 08:00 | Palaphoom Kovapitukted v Alessandro Ragazzi | 4-6,2-6 |
| ITF - Cairo M15 | 2021/09/11 08:00 | Maxime Mora v Alessandro Ragazzi | 4-6,3-6 |
| ITF - Cairo M15 | 2021/09/10 10:05 | Jakub Wojcik v Alessandro Ragazzi | 3-6,7-5,4-6 |
| ITF - Cairo M15 | 2021/09/09 08:00 | Alessandro Ragazzi v Louis Tessa | 6-4,6-4 |
| ITF - Cairo M15 | 2021/09/08 10:55 | Alessandro Ragazzi v Fares Zakaria | 6-2,6-1 |
| ITF - Cairo M15 | 2021/09/05 12:00 | Alessandro Ragazzi v Ryota Tanuma | 7-6,6-2 |