| Segunda B Grupo 2 | Matches | W | D | L |  |
 |
 |
| home | - | - | - | - | - | - | - |
| away | 1 | 1 | - | - | 4 | - | - |
| overall | 1 | 1 | - | - | 4 | - | - |
| Segunda B Playoff | Matches | W | D | L | |
|
|
| home | 1 | 1 | - | - | 3 | - | - |
| away | - | - | - | - | - | - | - |
| overall | 1 | 1 | - | - | 3 | - | - |
| Segunda B Grupo 2 | Home | - | Guest | |
|
|
Results |
| 28/03/21 | Real Unión | - | Athletic Club B | 4 | - | - | 0:1 |
| Segunda B Playoff | Home | - | Guest | |
|
|
Results |
| 16/05/21 | Athletic Club B | - | RC Celta B | 3 | - | - | 2:1 |
Spain