Head to Head
| Spain Primera Division RFEF Group 2 | 2023/02/11 18:00 | Real Sociedad B v Real Unión | W | 2-0 |
| Spain Primera Division RFEF Group 2 | 2022/10/22 17:00 | Real Unión v Real Sociedad B | W | 0-1 |
| Europe Friendlies | 2022/08/06 09:30 | Real Unión v Real Sociedad B | L | 2-1 |
| Spain Segunda B Group 2 | 2021/02/20 17:30 | Real Unión v Real Sociedad B | L | 3-1 |
| Spain Segunda B Group 2 | 2020/11/22 11:00 | Real Sociedad B v Real Unión | L | 0-1 |
| Spain Segunda B Group 2 | 2019/12/15 16:00 | Real Unión v Real Sociedad B | D | 2-2 |
| Europe Friendlies | 2019/08/03 09:30 | Real Sociedad B v Real Unión | W | 1-0 |
| Spain Segunda B Group 2 | 2019/02/24 17:00 | Real Sociedad B v Real Unión | W | 2-1 |
Home History
| Spain Primera Division RFEF Group 2 | 2023/04/16 10:00 | Real Sociedad B v Amorebieta | L | 0-1 |
| Spain Primera Division RFEF Group 2 | 2023/04/09 16:00 | SD Logrones v Real Sociedad B | D | 0-0 |
| Spain Primera Division RFEF Group 2 | 2023/04/02 14:00 | Real Sociedad B v Sabadell | D | 1-1 |
| Spain Primera Division RFEF Group 2 | 2023/03/25 16:00 | Real Sociedad B v CD Calahorra | W | 3-0 |
| Spain Primera Division RFEF Group 2 | 2023/03/19 11:00 | Eldense v Real Sociedad B | D | 2-2 |
| Spain Primera Division RFEF Group 2 | 2023/03/11 18:00 | Real Sociedad B v Numancia | W | 3-0 |
| Spain Primera Division RFEF Group 2 | 2023/03/05 11:00 | Gimnastic v Real Sociedad B | L | 2-0 |
| Spain Primera Division RFEF Group 2 | 2023/02/26 17:00 | Real Sociedad B v Athletic Bilbao B | D | 0-0 |
Away History
| Spain Primera Division RFEF Group 2 | 2023/04/16 14:00 | UD Logrones v Real Unión | L | 1-0 |
| Spain Primera Division RFEF Group 2 | 2023/04/09 14:00 | Real Unión v Real Murcia | L | 1-5 |
| Spain Primera Division RFEF Group 2 | 2023/04/02 10:00 | Real Unión v Numancia | W | 1-0 |
| Spain Primera Division RFEF Group 2 | 2023/03/26 16:00 | UE Cornella v Real Unión | D | 1-1 |
| Spain Primera Division RFEF Group 2 | 2023/03/18 18:00 | Real Unión v Barcelona B | L | 0-1 |
| 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 | 2023/03/05 11:00 | Real Unión v Sabadell | L | 0-1 |
| Spain Primera Division RFEF Group 2 | 2023/02/26 15:00 | SD Logrones v Real Unión | L | 1-0 |