| Copa del Rey | Matches | W | D | L |  |
 |
 |
| home | - | - | - | - | - | - | - |
| away | 1 | - | - | 1 | 1 | - | - |
| overall | 1 | - | - | 1 | 1 | - | - |
| Primera RFEF Grupo 1 | Matches | W | D | L | |
|
|
| home | 1 | - | 1 | - | 1 | - | - |
| away | - | - | - | - | - | - | - |
| overall | 1 | - | 1 | - | 1 | - | - |
| Segunda B Grupo 2 | Matches | W | D | L | |
|
|
| home | 3 | 1 | 1 | 1 | 8 | - | - |
| away | 1 | - | - | 1 | 5 | - | - |
| overall | 4 | 1 | 1 | 2 | 13 | - | - |
| Copa del Rey | Home | - | Guest | |
|
|
Results |
| 30/08/17 | CD Calahorra | - | Real Unión | 1 | - | - | 1:0 |
| Primera RFEF Grupo 1 | Home | - | Guest | |
|
|
Results |
| 12/02/22 | Real Unión | - | UD Logroñés | 1 | - | - | 1:1 |
| Segunda B Grupo 2 | Home | - | Guest | |
|
|
Results |
| 21/02/16 | Real Unión | - | CD Mensajero | 2 | - | - | 2:3 |
| 23/04/16 | Barakaldo CF | - | Real Unión | 5 | - | - | 3:2 |
| 22/04/18 | Real Unión | - | SD Gernika | 6 | - | - | 5:4 |
| 26/08/18 | Real Unión | - | Gimnástica Torrelavega | - | - | - | 1:1 |
Spain