| 5. Round | 30/09/2023 | Real Sociedad C | - | AD San Juan | 4:0 | ||||
| 6. Round | 07/10/2023 | Arenas de Getxo | - | Real Sociedad C | 0:2 |  |
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| 9. Round | 29/10/2023 | Real Sociedad C | - | CD Tudelano | 1:2 | |
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| 13. Round | 25/11/2023 | CD Brea | - | Real Sociedad C | 0:1 | ||||
| 15. Round | 09/12/2023 | Athletic Club B | - | Real Sociedad C | 3:0 | ||||
| 18. Round | 13/01/2024 | CD Valle de Egüés | - | Real Sociedad C | 0:0 | ||||
| 19. Round | 20/01/2024 | Real Sociedad C | - | CD Alavés B | 2:2 | ||||
| 22. Round | 10/02/2024 | AD San Juan | - | Real Sociedad C | 2:2 | ||||
| 23. Round | 18/02/2024 | Real Sociedad C | - | Arenas de Getxo | 2:2 | ||||
| 25. Round | 03/03/2024 | Real Sociedad C | - | CD Calahorra | 1:2 | ||||
| 29. Round | 31/03/2024 | SD Gernika | - | Real Sociedad C | 3:1 |
Spain