| 4. Round | 08/11/2020 | UP Langreo | - | Sporting Gijón B | 1:1 | ||||
| 5. Round | 21/11/2020 | Sporting Gijón B | - | CD Lealtad | 2:2 | ||||
| 6. Round | 29/11/2020 | CD Covadonga | - | Sporting Gijón B | 2:0 |  |
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| 7. Round | 05/12/2020 | Sporting Gijón B | - | Real Oviedo B | 0:1 | ||||
| 8. Round | 12/12/2020 | Sporting Gijón B | - | Marino de Luanco | 1:1 | |
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| 12. Round | 30/01/2021 | CD Numancia | - | Sporting Gijón B | 1:1 | ||||
| 9. Round | 03/02/2021 | Real Valladolid B | - | Sporting Gijón B | 0:2 | ||||
| 13. Round | 07/02/2021 | Sporting Gijón B | - | UP Langreo | 2:1 | ||||
| 10. Round | 10/02/2021 | Cultural Leonesa | - | Sporting Gijón B | 1:1 | ||||
| 14. Round | 14/02/2021 | CD Lealtad | - | Sporting Gijón B | 1:0 | ||||
| 15. Round | 21/02/2021 | Sporting Gijón B | - | CD Covadonga | 3:3 | ||||
| 16. Round | 07/03/2021 | Real Oviedo B | - | Sporting Gijón B | 1:0 | ||||
| 17. Round | 14/03/2021 | Marino de Luanco | - | Sporting Gijón B | 0:0 | ||||
| 18. Round | 21/03/2021 | Sporting Gijón B | - | Real Valladolid B | 0:2 |
Spain