| 1. Ronde | 07.04.2021 | SD Amorebieta | - | CD Tudelano | 3:0 | ||||
| 2. Ronde | 11.04.2021 | CD Tudelano | - | Athletic Club B | 1:4 |  |
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| 3. Ronde | 18.04.2021 | Real Sociedad B | - | CD Tudelano | 3:2 | |
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| 4. Ronde | 25.04.2021 | CD Tudelano | - | SD Amorebieta | 1:2 | ||||
| 5. Ronde | 01.05.2021 | Athletic Club B | - | CD Tudelano | 3:1 | |
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| 6. Ronde | 09.05.2021 | CD Tudelano | - | Real Sociedad B | 1:2 |
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