15. Round | 01/12/2019 | Athletic Bilbao B | - | CD Izarra | 3:3 | ||||
16. Round | 06/12/2019 | SD Leioa | - | Athletic Bilbao B | 1:0 | ||||
17. Round | 14/12/2019 | Athletic Bilbao B | - | Barakaldo CF | 0:1 | ||||
18. Round | 21/12/2019 | Real Sociedad B | - | Athletic Bilbao B | 0:2 | ||||
19. Round | 04/01/2020 | Athletic Bilbao B | - | CD Alavés B | 1:0 | ||||
20. Round | 15/01/2020 | Athletic Bilbao B | - | Haro Deportivo | 2:3 | ||||
21. Round | 19/01/2020 | CD Calahorra | - | Athletic Bilbao B | 2:3 | ||||
23. Round | 01/02/2020 | Salamanca CF UDS | - | Athletic Bilbao B | 1:1 | ||||
24. Round | 08/02/2020 | Athletic Bilbao B | - | CD Tudelano | 1:0 | ||||
25. Round | 15/02/2020 | CA Osasuna B | - | Athletic Bilbao B | 1:1 | ||||
26. Round | 22/02/2020 | Athletic Bilbao B | - | Arenas de Getxo | 1:1 | ||||
27. Round | 29/02/2020 | SD Amorebieta | - | Athletic Bilbao B | 2:1 | ||||
28. Round | 07/03/2020 | Athletic Bilbao B | - | Real Unión | 3:3 |