1. Round | 06/03/2021 | UAI Urquiza | - | Atlético San Miguel | 1:0 | ||||
2. Round | 12/03/2021 | Atlético San Miguel | - | Talleres (RdE) | 1:1 | ||||
4. Round | 27/03/2021 | Deportivo Merlo | - | Atlético San Miguel | 1:0 | ||||
5. Round | 04/04/2021 | Atlético San Miguel | - | Flandria | 1:1 | ||||
6. Round | 10/04/2021 | Cañuelas | - | Atlético San Miguel | 3:0 | ||||
7. Round | 17/04/2021 | Atlético San Miguel | - | Acassuso | 2:0 | ||||
10. Round | 08/05/2021 | Argentino de Quilmes | - | Atlético San Miguel | 2:1 | ||||
11. Round | 15/05/2021 | Atlético San Miguel | - | CA Los Andes | 1:0 | ||||
13. Round | 15/06/2021 | Atlético San Miguel | - | Fénix | 3:2 | ||||
14. Round | 22/06/2021 | Defensores Unidos de Zárate | - | Atlético San Miguel | 2:0 | ||||
15. Round | 26/06/2021 | Atlético San Miguel | - | Villa San Carlos | 1:0 | ||||
16. Round | 03/07/2021 | Armenio | - | Atlético San Miguel | 1:1 | ||||
17. Round | 10/07/2021 | Atlético San Miguel | - | Comunicaciones de Buenos Aires | 2:0 |