| Segunda B Playoff | Matches | W | D | L |  |
 |
 |
| home | - | - | - | - | - | - | - |
| away | 1 | - | - | 1 | 2 | - | 1 |
| overall | 1 | - | - | 1 | 2 | - | 1 |
| Segunda B Playoff | Home | - | Guest | |
|
|
Results |
| 16/05/21 | Athletic Bilbao B | - | RC Celta B | 2 | - | 1 | 2:1 |
| Segunda B Playoff | Matches | W | D | L | |
|
|
| home | - | - | - | - | - | - | - |
| away | 1 | - | - | 1 | 2 | - | 1 |
| overall | 1 | - | - | 1 | 2 | - | 1 |
| Segunda B Playoff | Home | - | Guest | |
|
|
Results |
| 16/05/21 | Athletic Bilbao B | - | RC Celta B | 2 | - | 1 | 2:1 |
| Complete name: | Andrés Fuentes Molina |
| Born: | |
| Place of birth: |
Spain |
| Nationality: |
Spain |