| 23. Ronde | 15.02.2021 | Cádiz CF | - | Athletic Club | 0:4 | ||||
| 26. Ronde | 07.03.2021 | Athletic Club | - | Granada CF | 2:1 | ||||
| 27. Ronde | 14.03.2021 | Celta de Vigo | - | Athletic Club | 0:0 | ||||
| 28. Ronde | 20.03.2021 | Athletic Club | - | SD Eibar | 1:1 | ||||
| 30. Ronde | 10.04.2021 | Athletic Club | - | Deportivo Alavés | 0:0 | ||||
| 31. Ronde | 21.04.2021 | Real Betis | - | Athletic Club | 0:0 | ||||
| 32. Ronde | 25.04.2021 | Athletic Club | - | Atlético Madrid | 2:1 | ||||
| 33. Ronde | 28.04.2021 | Athletic Club | - | Real Valladolid | 2:2 | ||||
| 34. Ronde | 03.05.2021 | Sevilla FC | - | Athletic Club | 0:1 | ||||
| 35. Ronde | 08.05.2021 | Athletic Club | - | CA Osasuna | 2:2 | ||||
| 36. Ronde | 12.05.2021 | SD Huesca | - | Athletic Club | 1:0 | ||||
| 37. Ronde | 16.05.2021 | Athletic Club | - | Real Madrid | 0:1 | ||||
| 38. Ronde | 22.05.2021 | Elche CF | - | Athletic Club | 2:0 |
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