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 |