| 1. Round | 07/04/2021 | Athletic Club B | - | CD Calahorra | 2:1 |  |
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| 2. Round | 11/04/2021 | CD Tudelano | - | Athletic Club B | 1:4 | ||||
| 6. Round | 09/05/2021 | SD Logroñés | - | Athletic Club B | 1:0 |
| 1. Round | 07/04/2021 | Athletic Club B | - | CD Calahorra | 2:1 | |
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| 2. Round | 11/04/2021 | CD Tudelano | - | Athletic Club B | 1:4 | ||||
| 6. Round | 09/05/2021 | SD Logroñés | - | Athletic Club B | 1:0 |
| Jon Guruzeta Rodríguez | |
| Born: | 03.04.2000 |
| Place of birth: |
San Sebastián, 
Spain |
| Nationality: |
Spain
|
| Height: | 185 cm |
| Weight: | 78 kg |
| Position(s): | Right Midfielder Left Midfielder |
| Foot: | right |