Head to Head
| Spain Segunda B Group 2 | 2019/03/09 17:00 | Arenas Club de Getxo v Real Unión | L | 1-0 |
| Spain Segunda B Group 2 | 2018/10/21 15:00 | Real Unión v Arenas Club de Getxo | D | 1-1 |
| Spain Segunda B Group 2 | 2018/04/14 16:00 | Arenas Club de Getxo v Real Unión | D | 1-1 |
| Spain Segunda B Group 2 | 2017/11/19 16:00 | Real Unión v Arenas Club de Getxo | D | 2-2 |
| Spain Segunda B Group 2 | 2017/04/23 15:00 | Real Unión v Arenas Club de Getxo | D | 0-0 |
| Spain Segunda B Group 1 | 2016/11/26 16:00 | Arenas Club de Getxo v Real Unión | D | 0-0 |
| Spain Segunda B Group 2 | 2016/03/12 15:00 | Arenas Club de Getxo v Real Unión | W | 1-3 |
| Spain Segunda B Group 2 | 2015/10/25 16:00 | Real Unión v Arenas Club de Getxo | W | 2-0 |
Home History
| Spain Segunda B Group 2 | 2019/09/01 16:00 | Real Unión v Cultural Leonesa | D | 1-1 |
| Spain Segunda B Group 2 | 2019/08/24 18:30 | CD Calahorra v Real Unión | L | 2-0 |
| Europe Friendlies | 2019/08/17 09:00 | Amorebieta v Real Unión | L | 3-2 |
| Europe Friendlies | 2019/08/16 17:00 | Real Unión v Lagun Onak | D | 1-1 |
| 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 |
Away History
| Spain Segunda B Group 2 | 2019/08/31 14:00 | Arenas Club de Getxo v Tudelano | D | 1-1 |
| Spain Segunda B Group 2 | 2019/08/25 17:00 | Salamanca CF UDS v Arenas Club de Getxo | L | 3-1 |
| Europe Friendlies | 2019/08/03 16:30 | Arenas Club de Getxo v Barakaldo | W | 2-1 |
| Europe Friendlies | 2019/07/30 09:01 | Athletic Bilbao B v Arenas Club de Getxo | D | 1-1 |
| Europe Friendlies | 2019/07/25 18:00 | Arenas Club de Getxo v Santurtzi | W | 4-0 |
| Europe Friendlies | 2019/07/20 10:00 | Arenas Club de Getxo v Athletic Bilbao | L | 1-6 |
| Spain Segunda B Group 2 | 2019/05/19 16:00 | Arenas Club de Getxo v Mirandes | W | 1-0 |
| Spain Segunda B Group 2 | 2019/05/12 16:00 | Real Sociedad B v Arenas Club de Getxo | D | 1-1 |