Head to Head
| Spain Segunda B Group 2 | 2019/03/24 16:00 | Racing Santander v Real Unión | D | 0-0 |
| Spain Segunda B Group 2 | 2018/11/04 16:00 | Real Unión v Racing Santander | W | 0-3 |
| Spain Segunda B Group 2 | 2018/05/13 16:00 | Racing Santander v Real Unión | L | 0-2 |
| Spain Segunda B Group 2 | 2017/12/17 16:00 | Real Unión v Racing Santander | W | 1-3 |
Home History
| Spain Segunda B Group 2 | 2021/01/10 16:00 | Racing Santander v Amorebieta | L | 0-1 |
| Spain Segunda B Group 2 | 2021/01/03 15:30 | Real Sociedad B v Racing Santander | L | 4-1 |
| Spain Segunda B Group 2 | 2020/12/20 16:00 | Arenas Club de Getxo v Racing Santander | D | 1-1 |
| Spain Copa del Rey | 2020/12/17 18:00 | Mutilvera v Racing Santander | L | 1-0 |
| Spain Segunda B Group 2 | 2020/12/02 18:00 | Leioa v Racing Santander | L | 1-0 |
| Spain Segunda B Group 2 | 2020/11/28 17:00 | Racing Santander v Barakaldo | W | 3-0 |
| Spain Segunda B Group 2 | 2020/11/21 17:30 | Laredo v Racing Santander | D | 0-0 |
| Spain Segunda B Group 2 | 2020/11/01 17:00 | Racing Santander v Alaves B | W | 3-0 |
Away History
| Spain Segunda B Group 2 | 2021/01/10 17:00 | Athletic Bilbao B v Real Unión | D | 0-0 |
| Spain Segunda B Group 2 | 2020/12/20 16:00 | Real Unión v Portugalete | W | 2-1 |
| Spain Segunda B Group 2 | 2020/12/05 14:45 | Real Unión v Arenas Club de Getxo | D | 1-1 |
| Spain Segunda B Group 2 | 2020/11/28 14:45 | Amorebieta v Real Unión | L | 1-0 |
| Spain Segunda B Group 2 | 2020/11/22 11:00 | Real Sociedad B v Real Unión | W | 0-1 |
| Spain Segunda B Group 2 | 2020/11/18 16:00 | Real Unión v Alaves B | L | 1-2 |
| Spain Segunda B Group 2 | 2020/11/15 16:00 | Real Unión v Barakaldo | W | 2-1 |
| Spain Segunda B Group 2 | 2020/11/08 17:00 | Laredo v Real Unión | L | 1-0 |