Stadium: Court 4 Round: 25 Ground: Clay
| ITF M15 Antalya | 2021/10/19 07:00 | Oscar Galimardanov v Antonin Bolardt | 2-6,3-6 |
| ITF M15 Antalya | 2021/10/18 07:00 | Daniil Gusev v Antonin Bolardt | 0-6,0-6 |
| ITF M15 Antalya | 2021/10/17 07:00 | Matias P D L Gomila v Antonin Bolardt | 4-6,6-3,7-10 |
| ITF M15 Antalya | 2021/10/12 07:00 | Antonin Bolardt v Hasan Ibrahim | 1-6,4-6 |
| ITF M15 Antalya | 2021/10/11 13:20 | Antonin Bolardt v Philipp Pavlenko | 6-2,6-3 |
| ITF M25 Prague | 2021/10/05 09:15 | Antonin Bolardt v Max Hans Rehberg | 1-6,6-4,4-6 |
| ITF M25 Prague | 2021/10/04 09:40 | Antonin Bolardt v Samuel Paulovcak | 6-2,6-4 |
| ITF M25 Prague | 2021/10/03 14:00 | Antonin Bolardt v Dominique Graf | 6-2,6-2 |
| ITF M15 Antalya | 2021/10/15 07:00 | Daniel Michalski v Savva Polukhin | 5-7,6-4,4-6 |
| ITF M15 Antalya | 2021/10/12 08:40 | Daniel Michalski v Santiago De La Fuente | 6-1,6-1 |
| Challenger Lisbon | 2021/09/30 14:40 | Joao Domingues v Daniel Michalski | 6-2,6-2 |
| Challenger Lisbon | 2021/09/28 15:15 | Daniel Michalski v Taro Daniel | 7-6,5-7,6-2 |
| Challenger Lisbon | 2021/09/27 11:30 | Lucas Gerch v Daniel Michalski | 6-7,3-6 |
| Challenger Lisbon | 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 |