Stadium: Court 2 Round: 25 Ground: Clay
| Lisbon, Portugal | 2021/09/30 14:40 | Joao Domingues v Daniel Michalski | 6-2,6-2 |
| Lisbon, Portugal | 2021/09/28 15:15 | Daniel Michalski v Taro Daniel | 7-6,5-7,6-2 |
| Lisbon, Portugal | 2021/09/27 11:30 | Lucas Gerch v Daniel Michalski | 6-7,3-6 |
| Lisbon, Portugal | 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 |
| Challenger Warsaw | 2021/08/25 08:00 | Daniel Michalski v Nino Serdarusic | 3-6,4-6 |
| ITF - M15 Sharm El Sheikh | 2021/10/04 08:00 | Santiago De La Fuente v Federico Salomone | 3-6,2-6 |
| ITF M15 Cairo | 2021/09/28 08:00 | Santiago De La Fuente v Marco Furlanetto | 6-7,7-5,4-10 |
| ITF M15 Cairo | 2021/09/27 08:00 | Santiago De La Fuente v Kaufmann, Hans Peter | 7-5,7-5 |
| ITF M15 Cairo | 2021/09/19 12:00 | Sanchez Martinez, Benito v Santiago De La Fuente | 6-1,6-4 |
| ITF M15 Cairo | 2021/09/16 08:00 | Santiago De La Fuente v Nathan Seateun | 2-6,6-1,4-6 |
| ITF M15 Cairo | 2021/09/15 08:00 | Maikel De Boes v Santiago De La Fuente | 1-6,3-6 |
| ITF M15 Cairo | 2021/09/11 08:00 | Biagio Gramaticopolo v Santiago De La Fuente | 4-6,3-6 |
| ITF M15 Cairo | 2021/09/10 08:00 | Santiago De La Fuente v Pujol Navarro, Bruno | 6-3,6-4 |