Head to Head
| Spain Segunda B Group 2 | 2019/11/24 15:00 | Izarra v Real Unión | W | 0-1 |
| Spain Segunda B Group 2 | 2019/03/17 16:00 | Real Unión v Izarra | L | 0-4 |
| Spain Segunda B Group 2 | 2018/10/28 16:00 | Izarra v Real Unión | D | 1-1 |
| Spain Segunda B Group 2 | 2018/01/14 15:00 | Izarra v Real Unión | L | 2-0 |
| Spain Segunda B Group 2 | 2017/08/26 17:00 | Real Unión v Izarra | W | 1-0 |
Home History
| Europe Friendlies | 2021/08/11 16:30 | Real Unión v Athletic Bilbao B | L | 0-2 |
| Europe Friendlies | 2021/07/31 17:01 | Real Unión v Racing Santander | D | 2-2 |
| Spain Segunda B Group 2 | 2021/05/16 10:00 | CD Ebro v Real Unión | L | 1-0 |
| Spain Segunda B Group 2 | 2021/05/09 16:00 | Real Unión v Osasuna B | L | 0-1 |
| Spain Segunda B Group 2 | 2021/05/02 10:00 | SD Tarazona v Real Unión | W | 1-2 |
| Spain Segunda B Group 2 | 2021/04/18 16:00 | Real Unión v CD Ebro | W | 3-0 |
| Spain Segunda B Group 2 | 2021/04/10 15:00 | Osasuna B v Real Unión | W | 0-2 |
| Spain Segunda B Group 2 | 2021/04/07 16:00 | Real Unión v SD Tarazona | W | 1-0 |
Away History
| Europe Friendlies | 2021/08/17 18:00 | Izarra v CD Corellano | W | 4-0 |
| Europe Friendlies | 2021/08/11 17:00 | Izarra v Alaves B | W | 2-0 |
| Europe Friendlies | 2021/08/07 17:00 | Izarra v SD Logrones | D | 1-1 |
| Spain Segunda B Group 2 | 2021/05/23 10:00 | Barakaldo v Izarra | D | 1-1 |
| Spain Segunda B Group 2 | 2021/05/16 16:00 | Izarra v Leioa | W | 4-1 |
| Spain Segunda B Group 2 | 2021/05/09 15:00 | Portugalete v Izarra | W | 0-1 |
| Spain Segunda B Group 2 | 2021/05/02 16:00 | Izarra v Alaves B | W | 2-1 |
| Spain Segunda B Group 2 | 2021/04/25 16:00 | Izarra v Barakaldo | W | 3-0 |