| 3. Ronde | 16.09.2023 | Athletic Club B | - | UD Barbastro | 4:0 | ||||
| 5. Ronde | 30.09.2023 | Athletic Club B | - | CD Valle de Egüés | 3:1 | ||||
| 8. Ronde | 21.10.2023 | UD Mutilvera | - | Athletic Club B | 0:3 | ||||
| 10. Ronde | 04.11.2023 | Arenas de Getxo | - | Athletic Club B | 0:3 | ||||
| 11. Ronde | 11.11.2023 | Athletic Club B | - | Barakaldo CF | 2:1 | ||||
| 12. Ronde | 19.11.2023 | CD Calahorra | - | Athletic Club B | 0:1 | ||||
| 23. Ronde | 18.02.2024 | Athletic Club B | - | CD Alavés B | 2:1 | ||||
| 25. Ronde | 02.03.2024 | Athletic Club B | - | UD Mutilvera | 3:1 | ||||
| 27. Ronde | 16.03.2024 | Athletic Club B | - | Arenas de Getxo | 2:1 | ||||
| 28. Ronde | 24.03.2024 | Barakaldo CF | - | Athletic Club B | 1:2 |  |
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| 29. Ronde | 30.03.2024 | Athletic Club B | - | CD Calahorra | 2:1 | ||||
| 33. Ronde | 28.04.2024 | Athletic Club B | - | SD Gernika | 3:1 | ||||
| 34. Ronde | 05.05.2024 | CD Brea | - | Athletic Club B | 0:5 |
Spanje