Head to Head
| Spain Primera Division RFEF Group 1 | 2022/05/01 10:00 | Real Unión v Rayo Majadahonda | W | 1-0 |
| Spain Primera Division RFEF Group 1 | 2021/10/03 10:00 | Rayo Majadahonda v Real Unión | L | 1-0 |
| Spain Segunda B Group 2 | 2017/03/05 11:00 | Rayo Majadahonda v Real Unión | L | 2-0 |
| Spain Segunda B Group 2 | 2016/10/16 15:00 | Real Unión v Rayo Majadahonda | W | 2-0 |
| Spain Segunda B Group 2 | 2016/01/31 16:00 | Real Unión v Rayo Majadahonda | W | 1-0 |
| Spain Segunda B Group 2 | 2015/09/13 10:00 | Rayo Majadahonda v Real Unión | L | 1-0 |
Home History
| Spain Primera Division RFEF Group 1 | 2023/09/03 18:30 | Barcelona B v Real Unión | L | 2-1 |
| Spain Primera Division RFEF Group 1 | 2023/08/27 18:30 | Real Unión v Sabadell | W | 2-1 |
| Europe Friendlies | 2023/08/19 17:00 | UD Logrones v Real Unión | D | 1-1 |
| Europe Friendlies | 2023/08/16 17:00 | Real Sociedad B v Real Unión | L | 2-1 |
| Europe Friendlies | 2023/08/12 09:30 | Alaves B v Real Unión | W | 0-1 |
| Europe Friendlies | 2023/08/05 17:00 | Sestao River v Real Unión | W | 0-1 |
| Club Friendly List | 2023/08/02 17:00 | Real Unión v Bordeaux II | D | 1-1 |
| Club Friendly List | 2023/07/29 17:00 | Real Unión v SD Logrones | W | 4-0 |
Away History
| Spain Primera Division RFEF Group 1 | 2023/09/02 19:30 | Rayo Majadahonda v Gimnastic | D | 1-1 |
| Spain Primera Division RFEF Group 1 | 2023/08/26 18:30 | Deportivo La Coruna v Rayo Majadahonda | D | 0-0 |
| Europe Friendlies | 2023/08/20 09:00 | Real Madrid B v Rayo Majadahonda | L | 3-0 |
| Europe Friendlies | 2023/08/02 18:00 | Gimnastica Segoviana v Rayo Majadahonda | W | 0-3 |
| Europe Friendlies | 2023/07/29 19:00 | Alcorcon v Rayo Majadahonda | L | 1-0 |
| Europe Friendlies | 2023/07/26 17:30 | Valladolid v Rayo Majadahonda | L | 2-0 |
| Spain Primera Division RFEF Group 1 | 2023/05/27 17:30 | Rayo Majadahonda v Merida | D | 1-1 |
| Spain Primera Division RFEF Group 1 | 2023/05/20 17:30 | RB Linense v Rayo Majadahonda | L | 1-0 |