| 4. Round | 18/09/2021 | FC Andorra | - | Atlético Baleares | 2:2 |  |
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| 5. Round | 26/09/2021 | Atlético Baleares | - | Real Betis B | 1:0 | ||||
| 6. Round | 03/10/2021 | Real Madrid Castilla | - | Atlético Baleares | 2:2 | ||||
| 7. Round | 10/10/2021 | Atlético Baleares | - | Linares Deportivo | 1:1 | ||||
| 8. Round | 17/10/2021 | UE Costa Brava | - | Atlético Baleares | 1:2 | ||||
| 10. Round | 31/10/2021 | CD Castellón | - | Atlético Baleares | 2:1 | |
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| 13. Round | 21/11/2021 | Atlético Baleares | - | UCAM Murcia CF | 3:0 | ||||
| 16. Round | 12/12/2021 | FC Barcelona B | - | Atlético Baleares | 3:1 |
Spain