| 2. Round | 24/10/2020 | CD Alavés B | - | Arenas de Getxo | 2:0 |  |
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| 3. Round | 01/11/2020 | Racing Santander | - | CD Alavés B | 3:0 | ||||
| 4. Round | 07/11/2020 | CD Alavés B | - | Club Portugalete | 1:0 | |
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| 5. Round | 14/11/2020 | Athletic Club B | - | CD Alavés B | 2:0 | ||||
| 21. Round | 21/03/2021 | CD Alavés B | - | Barakaldo CF | 3:1 | ||||
| 22. Round | 28/03/2021 | Real Sociedad B | - | CD Alavés B | 4:1 |
Algeria
Spain