| Segunda B Grupo 2 | Matches | W | D | L |  |
 |
 |
| home | 2 | 1 | 1 | - | 6 | 1 | - |
| away | 2 | - | - | 2 | 3 | - | - |
| overall | 4 | 1 | 1 | 2 | 9 | 1 | - |
| Segunda B Grupo 2 | Home | - | Guest | |
|
|
Results |
| 26/11/17 | SD Gernika | - | Real Unión | 1 | - | - | 1:0 |
| 24/02/19 | Real Sociedad B | - | Real Unión | 2 | - | - | 2:1 |
| 01/12/19 | Real Unión | - | SD Leioa | 2 | 1 | - | 0:0 |
| 20/02/21 | Real Unión | - | Real Sociedad B | 4 | - | - | 3:1 |
Spain