 Athletic de Bilbao B |
| Founded: | 1898 |
| Official website: | www.athletic-club.net |
| E-mail: | prensa@athletic-club.net |
| Manager: | Joseba ETXEBERRIA |
| Name: | Instalaciones de Lezama |
| Capacity: | 2,000 |
| Segunda B II 2019/20 | |
|
| 19-Oct-2019 | 2a B II (9) | Real Unión | 0-1 | Athletic B |
| 26-Oct-2019 | 2a B II (10) | Athletic B | 4-1 | Valladolid B |
| 03-Nov-2019 | 2a B II (11) | Athletic B | 3-1 | Logroñés |
| 10-Nov-2019 | 2a B II (12) | Burgos | 2-0 | Athletic B |
| 16-Nov-2019 | 2a B II (13) | Athletic B | 4-1 | Unionistas |
| 24-Nov-2019 | 2a B II (14) | Guijuelo | 2-0 | Athletic B |
| 01-Dec-2019 | 2a B II (15) | Athletic B | 3-3 | Izarra |
| 06-Dec-2019 | 2a B II (16) | Leioa | 1-0 | Athletic B |
| 15-Dec-2019 | 2a B II (17) | Athletic B | - | Barakaldo |
| 22-Dec-2019 | 2a B II (18) | Real Sociedad B | - | Athletic B |
| 05-Jan-2020 | 2a B II (19) | Athletic B | - | Alavés B |
| 12-Jan-2020 | 2a B II (20) | Athletic B | - | Haro Deportivo |
| 19-Jan-2020 | 2a B II (21) | Calahorra | - | Athletic B |
| 26-Jan-2020 | 2a B II (22) | Athletic B | - | Cultural Leonesa |
| 02-Feb-2020 | 2a B II (23) | Salamanca CF UDS | - | Athletic B |
| 09-Feb-2020 | 2a B II (24) | Athletic B | - | Tudelano |
 |
|
22 (22)
2 (20)