Round: 25 Ground: Hardcourt outdoor
| 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 |
| UTR Pro Tennis Series - Pazardzhik | 2021/04/06 11:30 | Aristotelis Thanos v Petr Nesterov | 7-5,6-3 |
| ITF - M15 - Sozopol | 2021/09/14 07:00 | Tommaso Compagnucci v Caspar Schuetze | 6-1,6-2 |
| ITF - M15 - Sozopol | 2021/09/12 10:00 | Dean Thurner v Caspar Schuetze | 0-6,2-6 |
| ITF - M25 - Ricany | 2021/08/30 10:00 | Mark Havlicek v Caspar Schuetze | 6-1,6-2 |
| ITF - M25 - Caslano | 2021/08/24 11:35 | Giovanni Oradini v Caspar Schuetze | 6-4,6-0 |
| ITF - M25 - Caslano | 2021/08/23 17:30 | Pietro Pellanda v Caspar Schuetze | 1-6,3-6 |
| ITF - M15 - Oldenzaal | 2021/08/16 10:00 | Caspar Schuetze v Marc Dijkhuizen | 6-7,4-6 |
| ITF - M15 - Oldenzaal | 2021/08/15 08:30 | Caspar Schuetze v Max Van Nunen | 6-2,4-6,10-8 |
| ITF - M15 - Poprad | 2021/07/05 08:00 | Peter Nad v Caspar Schuetze | 6-3,6-4 |