Head to Head
| Spain Primera Division RFEF Group 2 | 2023/03/12 17:00 | Osasuna B v Real Unión | L | 4-2 |
| Spain Primera Division RFEF Group 2 | 2022/12/11 16:00 | Real Unión v Osasuna B | W | 1-0 |
| Spain Segunda B Group 2 | 2021/05/09 16:00 | Real Unión v Osasuna B | L | 0-1 |
| 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 |
Home History
| Spain Primera Division RFEF Group 1 | 2023/12/02 19:00 | Cultural Leonesa v Real Unión | L | 2-0 |
| Spain Primera Division RFEF Group 1 | 2023/11/26 11:00 | Real Unión v SD Logrones | L | 0-1 |
| Spain Primera Division RFEF Group 1 | 2023/11/18 17:00 | Real Unión v Gimnastic | D | 1-1 |
| Spain Primera Division RFEF Group 1 | 2023/11/11 16:00 | UE Cornella v Real Unión | L | 3-1 |
| Spain Primera Division RFEF Group 1 | 2023/11/05 15:00 | Real Unión v Deportivo La Coruna | W | 3-0 |
| Spain Primera Division RFEF Group 1 | 2023/10/29 11:00 | Lugo v Real Unión | L | 2-0 |
| Spain Primera Division RFEF Group 1 | 2023/10/22 14:00 | Real Unión v Ponferradina | D | 1-1 |
| Spain Primera Division RFEF Group 1 | 2023/10/14 15:00 | Celta Fortuna v Real Unión | L | 3-0 |
Away History
| Spain Primera Division RFEF Group 1 | 2023/12/03 11:00 | Osasuna B v Teruel | D | 1-1 |
| Spain Primera Division RFEF Group 1 | 2023/11/26 19:00 | Deportivo La Coruna v Osasuna B | D | 1-1 |
| Spain Primera Division RFEF Group 1 | 2023/11/19 11:00 | Osasuna B v Rayo Majadahonda | D | 1-1 |
| Spain Primera Division RFEF Group 1 | 2023/11/12 15:00 | Fuenlabrada v Osasuna B | L | 4-1 |
| Spain Primera Division RFEF Group 1 | 2023/11/05 19:00 | Osasuna B v Gimnastic | W | 1-0 |
| Spain Primera Division RFEF Group 1 | 2023/10/29 16:00 | Barcelona B v Osasuna B | L | 2-1 |
| Spain Primera Division RFEF Group 1 | 2023/10/22 10:00 | Osasuna B v Celta Fortuna | L | 2-3 |
| Spain Primera Division RFEF Group 1 | 2023/10/14 16:00 | SD Tarazona v Osasuna B | W | 1-3 |