Head to Head
| Spain Segunda B Group 2 | 2021/04/10 15:00 | Osasuna B v Real Unión | W | 0-2 |
| Spain Segunda B Group 2 | 2020/02/09 16:00 | Real Unión v Osasuna B | D | 1-1 |
| Spain Segunda B Group 2 | 2019/09/21 14:30 | Osasuna B v Real Unión | L | 4-2 |
| Spain Segunda B Group 2 | 2018/03/10 15:30 | Osasuna B v Real Unión | L | 1-0 |
| Spain Segunda B Group 2 | 2017/10/21 14:00 | Real Unión v Osasuna B | L | 1-3 |
| Europe Friendlies | 2017/08/05 17:00 | Real Unión v Osasuna B | L | 1-2 |
Home History
| Spain Segunda B Group 2 | 2021/05/02 10:00 | SD Tarazona v Real Unión | W | 1-2 |
| Spain Segunda B Group 2 | 2021/04/18 16:00 | Real Unión v CD Ebro | W | 3-0 |
| Spain Segunda B Group 2 | 2021/04/10 15:00 | Osasuna B v Real Unión | W | 0-2 |
| Spain Segunda B Group 2 | 2021/04/07 16:00 | Real Unión v SD Tarazona | W | 1-0 |
| Spain Segunda B Group 2 | 2021/03/28 10:00 | Real Unión v Athletic Bilbao B | L | 0-1 |
| Spain Segunda B Group 2 | 2021/03/21 10:30 | Portugalete v Real Unión | L | 2-0 |
| Spain Segunda B Group 2 | 2021/03/13 14:45 | Real Unión v Racing Santander | L | 0-2 |
| Spain Segunda B Group 2 | 2021/03/07 17:00 | Arenas Club de Getxo v Real Unión | D | 0-0 |
Away History
| Spain Segunda B Group 2 | 2021/05/02 09:30 | Osasuna B v Arenas Club de Getxo | L | 1-2 |
| Spain Segunda B Group 2 | 2021/04/28 15:00 | Racing Santander v Osasuna B | L | 3-1 |
| Spain Segunda B Group 2 | 2021/04/24 14:30 | Osasuna B v Laredo | W | 3-1 |
| Spain Segunda B Group 2 | 2021/04/10 15:00 | Osasuna B v Real Unión | L | 0-2 |
| Spain Segunda B Group 2 | 2021/04/07 17:00 | Arenas Club de Getxo v Osasuna B | W | 1-3 |
| Spain Segunda B Group 2 | 2021/03/31 15:00 | Osasuna B v Ejea | W | 2-0 |
| Spain Segunda B Group 2 | 2021/03/14 15:30 | AF Calahorra v Osasuna B | L | 4-1 |
| Spain Segunda B Group 2 | 2021/03/14 15:30 | CD Calahorra v Osasuna B | L | 4-1 |