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 |
| Spain Segunda B Group 2 | 2015/01/18 16:30 | Sestao River v Real Unión | D | 2-2 |
| Spain Segunda B Group 2 | 2014/08/30 14:00 | Real Unión v Sestao River | D | 2-2 |