| 19. Round | 13/01/2024 | Real Madrid Castilla | - | UD Ibiza | 1:1 | ||||
| 24. Round | 17/02/2024 | Algeciras CF | - | Real Madrid Castilla | 3:0 | ||||
| 25. Round | 24/02/2024 | Real Madrid Castilla | - | Real Murcia | 5:1 | ||||
| 26. Round | 03/03/2024 | UD Melilla | - | Real Madrid Castilla | 0:1 | ||||
| 27. Round | 09/03/2024 | Real Madrid Castilla | - | Antequera CF | 0:0 |  |
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| 28. Round | 17/03/2024 | Atlético Madrid B | - | Real Madrid Castilla | 2:0 | ||||
| 29. Round | 23/03/2024 | Real Madrid Castilla | - | CD Castellón | 0:2 | ||||
| 30. Round | 31/03/2024 | Atlético Baleares | - | Real Madrid Castilla | 0:1 | ||||
| 31. Round | 07/04/2024 | Real Madrid Castilla | - | Córdoba CF | 0:2 | ||||
| 32. Round | 14/04/2024 | Recreativo Huelva | - | Real Madrid Castilla | 1:0 | ||||
| 33. Round | 20/04/2024 | Real Madrid Castilla | - | CD Alcoyano | 3:1 | ||||
| 34. Round | 27/04/2024 | San Fernando CD | - | Real Madrid Castilla | 1:3 |
Spain