Head to Head
| Spain Primera Division RFEF Group 1 | 2024/09/28 13:30 | Real Unión v Sestao River | L | 2-1 |
| Spain Primera Division RFEF Group 1 | 2024/04/13 18:00 | Sestao River v Real Unión | W | 3-1 |
| Spain Primera Division RFEF Group 1 | 2024/01/03 18:00 | Real Unión v Sestao River | L | 4-2 |
| Europe Friendlies | 2023/08/05 17:00 | Sestao River v Real Unión | L | 0-1 |
| Spain Segunda B Group 2 | 2017/04/14 15:30 | Sestao River v Real Unión | L | 0-2 |
| Spain Segunda B Group 2 | 2016/11/19 17:00 | Real Unión v Sestao River | L | 1-0 |
| Spain Segunda B Group 2 | 2016/03/06 16:00 | Real Unión v Sestao River | D | 2-2 |
| Spain Segunda B Group 2 | 2015/10/18 15:30 | Sestao River v Real Unión | W | 1-0 |
Home History
| Spain Primera Division RFEF Group 1 | 2025/01/11 14:30 | Ponferradina v Sestao River | W | 1-2 |
| Spain Primera Division RFEF Group 1 | 2024/12/22 11:00 | Sestao River v Celta Fortuna | W | 2-0 |
| Spain Primera Division RFEF Group 1 | 2024/12/15 14:30 | Ourense v Sestao River | D | 0-0 |
| Spain Primera Division RFEF Group 1 | 2024/12/08 11:00 | Sestao River v CD Arenteiro | W | 2-1 |
| Spain Primera Division RFEF Group 1 | 2024/11/30 16:30 | Amorebieta v Sestao River | L | 2-0 |
| Spain Primera Division RFEF Group 1 | 2024/11/23 18:30 | Sestao River v Barakaldo | L | 0-1 |
| Spain Primera Division RFEF Group 1 | 2024/11/17 11:00 | Gimnastica Segoviana v Sestao River | D | 0-0 |
| Spain Primera Division RFEF Group 1 | 2024/11/10 18:30 | Cultural Leonesa v Sestao River | W | 1-2 |
Away History
| Spain Primera Division RFEF Group 1 | 2025/01/12 11:00 | Real Unión v Zamora CF | L | 1-2 |
| Spain Primera Division RFEF Group 1 | 2024/12/22 18:30 | Real Unión v Cultural Leonesa | L | 0-1 |
| Spain Primera Division RFEF Group 1 | 2024/12/14 16:30 | CD Arenteiro v Real Unión | L | 3-0 |
| Spain Primera Division RFEF Group 1 | 2024/12/07 16:30 | Real Unión v Athletic Bilbao B | W | 3-1 |
| Spain Primera Division RFEF Group 1 | 2024/12/01 14:30 | Lugo v Real Unión | L | 3-1 |
| Spain Primera Division RFEF Group 1 | 2024/11/24 11:00 | Real Unión v Ourense | L | 0-1 |
| Spain Primera Division RFEF Group 1 | 2024/11/16 16:30 | Real Sociedad B v Real Unión | L | 5-0 |
| Spain Primera Division RFEF Group 1 | 2024/11/09 16:30 | Real Unión v Ponferradina | D | 2-2 |