| 2. Round | 01/09/2024 | Gimnàstic de Tarragona | - | Sestao River | 1:1 | ||||
| 3. Round | 08/09/2024 | Sestao River | - | CD Lugo | 0:1 | ||||
| 4. Round | 14/09/2024 | Real Sociedad B | - | Sestao River | 0:1 | ||||
| 5. Round | 21/09/2024 | Sestao River | - | FC Andorra | 0:1 | ||||
| 6. Round | 28/09/2024 | Real Unión | - | Sestao River | 2:1 |  |
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| 7. Round | 06/10/2024 | Sestao River | - | FC Barcelona B | 2:2 |  |
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| 8. Round | 13/10/2024 | SD Tarazona | - | Sestao River | 1:0 | ||||
| 9. Round | 20/10/2024 | Sestao River | - | Athletic Club B | 0:1 | ||||
| 10. Round | 27/10/2024 | Zamora CF | - | Sestao River | 1:2 | ||||
| 11. Round | 02/11/2024 | Sestao River | - | CA Osasuna B | 1:2 | |
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| 12. Round | 10/11/2024 | Cultural Leonesa | - | Sestao River | 1:2 | ||||
| 13. Round | 17/11/2024 | Gimnástica Segoviana | - | Sestao River | 0:0 | |
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| 14. Round | 23/11/2024 | Sestao River | - | Barakaldo CF | 0:1 | ||||
| 15. Round | 30/11/2024 | SD Amorebieta | - | Sestao River | 2:0 | ||||
| 17. Round | 15/12/2024 | Ourense CF | - | Sestao River | 0:0 | ||||
| 18. Round | 22/12/2024 | Sestao River | - | RC Celta B | 2:0 | ||||
| 19. Round | 11/01/2025 | SD Ponferradina | - | Sestao River | 1:2 |
Spain