Head to Head
| Spain Segunda B Group 2 | 2016/02/13 15:00 | Real Unión v Real Sociedad B | L | 3-1 |
| Spain Segunda B Group 2 | 2015/09/26 14:30 | Real Sociedad B v Real Unión | L | 0-3 |
| Club Friendly List | 2015/08/12 17:00 | Real Unión v Real Sociedad B | L | 3-0 |
| Spain Segunda B Group 2 | 2015/01/24 17:00 | Real Unión v Real Sociedad B | L | 4-0 |
| Spain Segunda B Group 2 | 2014/09/06 16:00 | Real Sociedad B v Real Unión | W | 3-0 |
Home History
| 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 |
| Spain Segunda B Group 2 | 2016/05/15 16:00 | Real Sociedad B v CF Talavera | W | 3-1 |
| Spain Segunda B Group 2 | 2016/05/07 16:00 | Leioa v Real Sociedad B | W | 0-4 |
| Spain Segunda B Group 2 | 2016/05/01 10:00 | Real Sociedad B v Portugalete | W | 3-2 |
| Spain Segunda B Group 2 | 2016/04/23 16:00 | Gernika v Real Sociedad B | D | 1-1 |
| Spain Segunda B Group 2 | 2016/04/16 14:00 | Real Sociedad B v Barakaldo | W | 1-0 |
Away History
| 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 |
| Club Friendly List | 2016/07/19 17:00 | Real Unión v Eibar | L | 0-1 |
| Club Friendly List | 2016/07/16 17:00 | Real Unión v CD Alaves | D | 0-0 |
| Spain Segunda B Group 2 | 2016/05/15 16:00 | Real Unión v Leioa | L | 0-1 |
| Spain Segunda B Group 2 | 2016/05/07 16:00 | Portugalete v Real Unión | L | 1-0 |
| Spain Segunda B Group 2 | 2016/05/01 15:00 | Real Unión v Gernika | D | 1-1 |