Head to Head
| Spain Segunda B Group 2 | 2019/04/28 10:00 | Real Unión v CD Calahorra | W | 0-1 |
| Spain Segunda B Group 2 | 2018/12/08 15:30 | CD Calahorra v Real Unión | D | 1-1 |
| Spain Copa del Rey | 2017/08/30 16:00 | CD Calahorra v Real Unión | W | 1-0 |
| Spain Segunda B Group 2 | 2019/04/28 10:00 | Real Unión v CD Calahorra | W | 0-1 |
| Spain Segunda B Group 2 | 2018/12/08 15:30 | CD Calahorra v Real Unión | D | 1-1 |
| Spain Copa del Rey | 2017/08/30 16:00 | CD Calahorra v Real Unión | W | 1-0 |