| 1. Round | 28/08/2022 | Athletic Club B | - | CF La Nucía | 1:2 | ||||
| 3. Round | 10/09/2022 | Athletic Club B | - | CD Eldense | 0:1 | ||||
| 4. Round | 18/09/2022 | CD Castellón | - | Athletic Club B | 2:0 | ||||
| 6. Round | 02/10/2022 | CD Calahorra | - | Athletic Club B | 1:2 |  |
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| 7. Round | 09/10/2022 | Athletic Club B | - | CF Intercity | 1:0 |  |
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| 8. Round | 16/10/2022 | SD Amorebieta | - | Athletic Club B | 3:0 | ||||
| 9. Round | 23/10/2022 | Athletic Club B | - | Real Murcia | 0:3 | ||||
| 11. Round | 05/11/2022 | Athletic Club B | - | Gimnàstic de Tarragona | 0:0 | ||||
| 12. Round | 19/11/2022 | FC Barcelona B | - | Athletic Club B | 2:0 | |
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| 13. Round | 27/11/2022 | CA Osasuna B | - | Athletic Club B | 3:2 | ||||
| 15. Round | 08/12/2022 | CD Alcoyano | - | Athletic Club B | 3:3 | ||||
| 16. Round | 11/12/2022 | Athletic Club B | - | Atlético Baleares | 0:1 | ||||
| 19. Round | 15/01/2023 | Athletic Club B | - | Real Unión | 0:1 |
Spain