| 3. Ronde | 12.09.2021 | Cultural Leonesa | - | Athletic Club B | 2:1 | ||||
| 4. Ronde | 17.09.2021 | Athletic Club B | - | Unionistas CF | 0:1 | ||||
| 6. Ronde | 03.10.2021 | CD Tudelano | - | Athletic Club B | 2:2 | ||||
| 7. Ronde | 08.10.2021 | Athletic Club B | - | Celta de Vigo B | 0:1 | ||||
| 8. Ronde | 17.10.2021 | Real Valladolid B | - | Athletic Club B | 3:1 | ||||
| 10. Ronde | 31.10.2021 | SD Logroñés | - | Athletic Club B | 1:1 | ||||
| 11. Ronde | 07.11.2021 | Athletic Club B | - | Rayo Majadahonda | 1:1 | ||||
| 12. Ronde | 12.11.2021 | Racing Santander | - | Athletic Club B | 2:0 | ||||
| 13. Ronde | 21.11.2021 | Athletic Club B | - | CF Talavera | 0:1 | ||||
| 38. Ronde | 27.05.2022 | UD SS Reyes | - | Athletic Club B | 2:0 |  |
Spanje