Home History
| Europe Friendlies | 2019/08/03 09:30 | Real Sociedad B v Real Unión | L | 1-0 |
| Europe Friendlies | 2019/07/27 08:53 | Real Unión v CD Vitoria | W | 1-0 |
| Spain Segunda B Play-Offs | 2019/06/02 16:30 | Real Unión v Jumilla | W | 2-0 |
| Spain Segunda B Play-Offs | 2019/05/26 16:00 | Jumilla v Real Unión | D | 2-2 |
| Spain Segunda B Group 2 | 2019/05/19 16:00 | Real Unión v Tudelano | W | 1-0 |
| Spain Segunda B Group 2 | 2019/05/12 16:00 | Athletic Bilbao B v Real Unión | L | 2-0 |
| Spain Segunda B Group 2 | 2019/05/04 14:00 | Real Unión v CD Vitoria | W | 2-0 |
| Spain Segunda B Group 2 | 2019/04/28 10:00 | Real Unión v CD Calahorra | L | 0-1 |
Away History
| Europe Friendlies | 2019/07/13 17:00 | Lagun Onak v Real Sociedad | L | 0-5 |
| Spain Tercera Group 4 | 2019/05/18 16:30 | Basconia v Lagun Onak | L | 5-3 |
| Spain Tercera Group 4 | 2019/05/11 16:30 | Lagun Onak v San Ignacio | D | 0-0 |
| Spain Tercera Group 4 | 2019/05/04 14:30 | Pasaia KE v Lagun Onak | W | 0-1 |
| Spain Tercera Group 4 | 2019/04/27 15:00 | Lagun Onak v Ordizia | D | 1-1 |
| Spain Tercera Group 4 | 2019/04/18 09:15 | Santutxu v Lagun Onak | L | 2-0 |
| Spain Tercera Group 4 | 2019/04/13 15:00 | Lagun Onak v Portugalete | L | 1-2 |
| Spain Tercera Group 4 | 2019/04/07 16:00 | Sestao River v Lagun Onak | L | 3-1 |