 Club y Biblioteca Ramón Santamarina |
| Name: | Municipal General San Martín |
| Capacity: | 5,000 |
| Nacional B 2021 | |
|
| 29-Aug-2021 | Nacional B (23) | Santamarina | 1-1 | Guillermo Brown |
| 04-Sep-2021 | Nacional B (24) | Brown de Adrogue | 2-0 | Santamarina |
| 10-Sep-2021 | Nacional B (25) | Santamarina | 0-0 | San Martín (SJ) |
| 18-Sep-2021 | Nacional B (26) | Villa Dálmine | 1-0 | Santamarina |
| 25-Sep-2021 | Nacional B (27) | Santamarina | 0-2 | San Telmo |
| 04-Oct-2021 | Nacional B (28) | Defensores | 0-0 | Santamarina |
| 11-Oct-2021 | Nacional B (29) | All Boys | 0-0 | Santamarina |
| 16-Oct-2021 | Nacional B (30) | Santamarina | 1-1 | Almagro |
| 23-Oct-2021 | Nacional B (31) | Atlético Guemes | - | Santamarina |
| 30-Oct-2021 | Nacional B (32) | Santamarina | - | Deportivo Morón |
| 06-Nov-2021 | Nacional B (33) | Ferro | - | Santamarina |
| 13-Nov-2021 | Nacional B (34) | Santamarina | - | Tristan Suárez |
