Head to Head
| Spain Segunda B Group 2 | 2016/09/04 16:00 | Real Sociedad B v Real Unión | D | 1-1 |
| Spain Segunda B Group 2 | 2016/02/13 15:00 | Real Unión v Real Sociedad B | W | 3-1 |
| Spain Segunda B Group 2 | 2015/09/26 14:30 | Real Sociedad B v Real Unión | W | 0-3 |
| Club Friendly List | 2015/08/12 17:00 | Real Unión v Real Sociedad B | W | 3-0 |
| Spain Segunda B Group 2 | 2015/01/24 17:00 | Real Unión v Real Sociedad B | W | 4-0 |
| Spain Segunda B Group 2 | 2014/09/06 16:00 | Real Sociedad B v Real Unión | L | 3-0 |
Home History
| Spain Segunda B Group 2 | 2016/10/02 15:00 | Real Unión v Leioa | W | 2-1 |
| Spain Segunda B Group 2 | 2016/09/25 16:00 | Gernika v Real Unión | D | 2-2 |
| Spain Segunda B Group 2 | 2016/09/17 14:00 | Real Unión v Amorebieta | W | 1-0 |
| Spain Segunda B Group 2 | 2016/09/11 14:00 | Real Unión v Albacete | D | 0-0 |
| Spain Segunda B Group 2 | 2016/09/04 16:00 | Real Sociedad B v Real Unión | D | 1-1 |
| Spain Copa del Rey | 2016/08/31 19:00 | Albacete v Real Unión | L | 2-1 |
| Spain Segunda B Group 2 | 2016/08/27 18:00 | Real Unión v Real Madrid B | W | 1-0 |
| Spain Segunda B Group 2 | 2016/08/21 11:00 | Mensajero v Real Unión | D | 1-1 |
Away History
| Spain Segunda B Group 2 | 2016/10/01 16:00 | Real Sociedad B v Fuenlabrada | L | 1-2 |
| Spain Segunda B Group 2 | 2016/09/24 14:00 | Leioa v Real Sociedad B | L | 1-0 |
| Spain Segunda B Group 2 | 2016/09/17 16:00 | Real Sociedad B v Gernika | W | 4-0 |
| Spain Segunda B Group 2 | 2016/09/11 10:00 | Amorebieta v Real Sociedad B | D | 0-0 |
| Spain Segunda B Group 2 | 2016/09/04 16:00 | Real Sociedad B v Real Unión | D | 1-1 |
| Spain Segunda B Group 2 | 2016/08/28 16:00 | Real Sociedad B v Albacete | D | 2-2 |
| Spain Segunda B Group 2 | 2016/08/20 18:00 | Real Madrid B v Real Sociedad B | L | 3-2 |
| Club Friendly List | 2016/07/22 17:00 | Eibar v Real Sociedad B | W | 0-1 |