7. Round | 06/10/2018 | Athletic Bilbao B | - | UD Logroñés | 0:0 | ||||
8. Round | 13/10/2018 | Real Sociedad B | - | Athletic Bilbao B | 1:0 | ||||
9. Round | 20/10/2018 | Athletic Bilbao B | - | CD Mirandés | 1:3 | ||||
10. Round | 27/10/2018 | Arenas de Getxo | - | Athletic Bilbao B | 1:0 | ||||
11. Round | 03/11/2018 | Athletic Bilbao B | - | CD Izarra | 6:0 | ||||
12. Round | 11/11/2018 | Racing Santander | - | Athletic Bilbao B | 3:1 | ||||
13. Round | 18/11/2018 | Athletic Bilbao B | - | SCD Durango | 2:2 | ||||
16. Round | 09/12/2018 | Sporting Gijón B | - | Athletic Bilbao B | 3:1 | ||||
17. Round | 15/12/2018 | Athletic Bilbao B | - | CD Calahorra | 3:2 | ||||
18. Round | 22/12/2018 | Real Unión | - | Athletic Bilbao B | 1:0 | ||||
21. Round | 19/01/2019 | Athletic Bilbao B | - | Gimnástica Torrelavega | 1:0 | ||||
23. Round | 03/02/2019 | Athletic Bilbao B | - | SD Leioa | 2:1 | ||||
24. Round | 09/02/2019 | SD Gernika | - | Athletic Bilbao B | 2:1 | ||||
25. Round | 16/02/2019 | Athletic Bilbao B | - | Real Oviedo B | 4:1 | ||||
36. Round | 05/05/2019 | CD Calahorra | - | Athletic Bilbao B | 0:3 | ||||
37. Round | 12/05/2019 | Athletic Bilbao B | - | Real Unión | 2:0 | ||||
38. Round | 19/05/2019 | CD Vitoria | - | Athletic Bilbao B | 0:0 |