Home History
| Spain Primera Division RFEF Group 1 | 2021/09/05 10:00 | Valladolid Promesas v Real Unión | W | 0-2 |
| Spain Primera Division RFEF Group 1 | 2021/08/28 15:30 | Real Unión v CF Internacional de Madrid | W | 2-1 |
| Europe Friendlies | 2021/08/20 16:30 | Real Unión v Izarra | L | 0-1 |
| 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 |
Away History
| Spain Primera Division RFEF Group 1 | 2021/09/04 15:30 | Celta Fortuna v CD Badajoz | D | 0-0 |
| Spain Primera Division RFEF Group 1 | 2021/08/29 19:30 | Deportivo La Coruna v Celta Fortuna | L | 5-0 |
| Europe Friendlies | 2021/08/07 17:30 | CD Arenteiro v Celta Fortuna | L | 3-0 |
| Spain Segunda B Play-Offs | 2021/05/16 18:15 | Athletic Bilbao B v Celta Fortuna | L | 2-1 |
| Spain Segunda B Group 1 | 2021/05/09 10:00 | Burgos v Celta Fortuna | L | 1-0 |
| Spain Segunda B Group 1 | 2021/05/02 10:00 | Celta Fortuna v Cultural Leonesa | W | 2-1 |
| Spain Segunda B Group 1 | 2021/04/25 09:30 | Valladolid Promesas v Celta Fortuna | W | 0-5 |
| Spain Segunda B Group 1 | 2021/04/18 10:00 | Celta Fortuna v Burgos | D | 1-1 |