| 1. Ronde | 25.08.2019 | Haro Deportivo | - | Athletic Club B | 1:4 |  |
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| 2. Ronde | 31.08.2019 | Athletic Club B | - | CD Calahorra | 0:0 | ||||
| 3. Ronde | 08.09.2019 | Cultural Leonesa | - | Athletic Club B | 5:2 | ||||
| 4. Ronde | 14.09.2019 | Athletic Club B | - | Salamanca CF UDS | 4:0 | |
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| 8. Ronde | 12.10.2019 | Athletic Club B | - | SD Amorebieta | 3:3 | ||||
| 20. Ronde | 15.01.2020 | Athletic Club B | - | Haro Deportivo | 2:3 |  |
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| 21. Ronde | 19.01.2020 | CD Calahorra | - | Athletic Club B | 2:3 | ||||
| 25. Ronde | 15.02.2020 | CA Osasuna B | - | Athletic Club B | 1:1 | |
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| 26. Ronde | 22.02.2020 | Athletic Club B | - | Arenas de Getxo | 1:1 | ||||
| 27. Ronde | 29.02.2020 | SD Amorebieta | - | Athletic Club B | 2:1 | ||||
| 28. Ronde | 07.03.2020 | Athletic Club B | - | Real Unión | 3:3 |
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