| 1. Round | 24/08/2019 | Real Sociedad B | - | Burgos CF | 1:1 | ||||
| 2. Round | 31/08/2019 | Unionistas CF | - | Real Sociedad B | 1:3 | ||||
| 3. Round | 07/09/2019 | Real Sociedad B | - | CD Guijuelo | 2:0 | ||||
| 4. Round | 14/09/2019 | CD Izarra | - | Real Sociedad B | 1:1 | ||||
| 5. Round | 22/09/2019 | Real Sociedad B | - | SD Leioa | 4:3 |  |
|||
| 6. Round | 29/09/2019 | Barakaldo CF | - | Real Sociedad B | 0:5 | ||||
| 7. Round | 05/10/2019 | Real Valladolid B | - | Real Sociedad B | 2:1 | ||||
| 8. Round | 13/10/2019 | Real Sociedad B | - | CD Alavés B | 3:0 | ||||
| 9. Round | 20/10/2019 | Haro Deportivo | - | Real Sociedad B | 2:0 | ||||
| 10. Round | 26/10/2019 | Real Sociedad B | - | CD Calahorra | 2:0 | ||||
| 11. Round | 03/11/2019 | Cultural Leonesa | - | Real Sociedad B | 3:0 | ||||
| 12. Round | 09/11/2019 | Real Sociedad B | - | Salamanca CF UDS | 3:1 | ||||
| 14. Round | 23/11/2019 | Real Sociedad B | - | CA Osasuna B | 3:1 | ||||
| 16. Round | 07/12/2019 | Real Sociedad B | - | SD Amorebieta | 4:2 |
Ecuador