Estádio: Court 3 Round: 27 Ground: Clay
| ITF - M15 Antália | 2021/10/12 08:40 | Daniel Michalski v Santiago De La Fuente | 6-1,6-1 |
| Challenger - Lisboa | 2021/09/30 14:40 | Joao Domingues v Daniel Michalski | 6-2,6-2 |
| Challenger - Lisboa | 2021/09/28 15:15 | Daniel Michalski v Taro Daniel | 7-6,5-7,6-2 |
| Challenger - Lisboa | 2021/09/27 11:30 | Lucas Gerch v Daniel Michalski | 6-7,3-6 |
| Challenger - Lisboa | 2021/09/26 14:00 | Daniel Michalski v Giovanni Fonio | 6-4,7-5 |
| Challenger - Braga | 2021/09/20 09:00 | Daniel Michalski v Santiago Rodriguez Taverna | 2-6,3-6 |
| Challenger - Braga | 2021/09/19 09:00 | Nicolas Moreno De Alboran v Daniel Michalski | 4-6,4-6 |
| Challenger - Szczecin | 2021/09/13 13:40 | Daniel Michalski v Thai-Son Kwiatkowski | 3-6,6-4,1-6 |
| ITF - M15 Antália | 2021/10/14 07:00 | Savva Polukhin v Francesco Maestrelli | 6-1,6-3 |
| ITF - M15 Antália | 2021/10/13 07:00 | Hasan Ibrahim v Savva Polukhin | 3-6,4-6 |
| ITF - M15 Pirot | 2021/09/25 08:00 | Savva Polukhin v Luka Pavlovic | 2-6,4-6 |
| ITF - M15 Pirot | 2021/09/23 11:00 | Tom Kocevar-Desman v Savva Polukhin | 2-6,1-6 |
| ITF - M15 Pirot | 2021/09/21 14:55 | Savva Polukhin v Petar Teodorovic | 6-2,6-2 |
| ITF - M15 Zlatibor | 2021/09/15 09:30 | Zsombor Velcz v Savva Polukhin | 6-4,6-4 |
| ITF - M25 Santander | 2021/08/24 10:55 | Andrey Chepelev v Savva Polukhin | 4-6,7-6,6-0 |
| ITF - M25 Santander | 2021/08/23 16:00 | Savva Polukhin v George Davies | 6-0,6-1 |