| 9. Round | 03/02/2021 | Real Madrid Castilla | - | UD SS Reyes | 3:1 | ||||
| 13. Round | 07/02/2021 | UD SS Reyes | - | Atlético Madrid B | 2:0 | ||||
| 15. Round | 21/02/2021 | Las Rozas CF | - | UD SS Reyes | 0:1 | ||||
| 16. Round | 07/03/2021 | UD SS Reyes | - | Getafe CF B | 1:0 | ||||
| 17. Round | 14/03/2021 | Rayo Majadahonda | - | UD SS Reyes | 2:1 | ||||
| 18. Round | 21/03/2021 | UD SS Reyes | - | Real Madrid Castilla | 1:1 |
Spain