| 2019-07-26 18:00:14July 26, 2019 | Bilbao Athletic 4-2 Amorebieta | 4 - 2 | Friendly | 2019/2020 | Lezama | Recap |
| 2019-07-30 11:00:05July 30, 2019 | Bilbao Athletic 1-1 Arenas Club | 1 - 1 | Friendly | 2019/2020 | Lezama | Recap |
| 2019-08-03 19:30:57August 3, 2019 | Haro Deportivo 1-1 Bilbao Athletic | 1 - 1 | Friendly | 2019/2020 | El Mazo | Recap |
| 2019-08-07 19:30:47August 7, 2019 | Numancia 2-2 Bilbao Athletic | 2 - 2 | Friendly | 2019/2020 | Los Pajaritos | Recap |
| 2019-08-10 10:00:56August 10, 2019 | Oyonesa 0-4 Bilbao Athletic | 0 - 4 | Friendly | 2019/2020 | Estadio de Oion Arena | Recap |
| 2019-08-10 12:00:34August 10, 2019 | Alavés B 0-1 Bilbao Athletic | 0 - 1 | Friendly | 2019/2020 | Estadio de Oion Arena | Recap |
| 2019-08-14 19:00:44August 14, 2019 | Leioa 2-2 Bilbao Athletic | 2 - 2 | Friendly | 2019/2020 | Sarriena | Recap |
| 2019-08-17 19:00:41August 17, 2019 | Barakaldo 2-0 Bilbao Athletic | 2 - 0 | Friendly | 2019/2020 | Lasesarre | Recap |
| 2019-08-25 18:00:10August 25, 2019 | Haro 1-4 Bilbao Athletic | 1 - 4 | Segunda B | 2019/2020 | El Mazo | Recap |
| 2019-08-31 18:00:58August 31, 2019 | Bilbao Athletic 0-0 Calahorra | 0 - 0 | Segunda B | 2019/2020 | Lezama | Recap |
| 2019-09-08 19:00:40September 8, 2019 | Cultural Leonesa 5-2 Bilbao Athletic | 5 - 2 | Segunda B | 2019/2020 | Reino de León | Recap |
| 2019-09-11 19:30:28September 11, 2019 | Zalla 0-2 Bilbao Athletic | 0 - 2 | Friendly | 2019/2020 | Landaberri | Recap |
| 2019-09-14 18:00:39September 14, 2019 | Bilbao Athletic 4-0 Salamanca CF | 4 - 0 | Segunda B | 2019/2020 | Lezama | Recap |
| 2019-09-22 12:00:07September 22, 2019 | Tudelano vs Bilbao Athletic | 12:00:0712:00 pm | Segunda B | 2019/2020 | Ciudad de Tudelano | Preview |
| 2019-09-29 12:00:34September 29, 2019 | Bilbao Athletic vs Osasuna B | 12:00:3412:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2019-10-06 12:00:43October 6, 2019 | Arenas Club vs Bilbao Athletic | 12:00:4312:00 pm | Segunda B | 2019/2020 | Fadura | Preview |
| 2019-10-13 12:00:36October 13, 2019 | Bilbao Athletic vs Amorebieta | 12:00:3612:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2019-10-20 12:00:26October 20, 2019 | Real Unión vs Bilbao Athletic | 12:00:2612:00 pm | Segunda B | 2019/2020 | Stadium Gal | Preview |
| 2019-10-27 12:00:33October 27, 2019 | Bilbao Athletic vs Real Valladolid B | 12:00:3312:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2019-11-03 12:00:23November 3, 2019 | Bilbao Athletic vs Logroñés | 12:00:2312:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2019-11-10 12:00:08November 10, 2019 | Burgos vs Bilbao Athletic | 12:00:0812:00 pm | Segunda B | 2019/2020 | Estadio El Plantío | Preview |
| 2019-11-17 12:00:53November 17, 2019 | Bilbao Athletic vs Unionistas | 12:00:5312:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2019-11-24 12:00:34November 24, 2019 | Guijuelo vs Bilbao Athletic | 12:00:3412:00 pm | Segunda B | 2019/2020 | Estadio Municipal de Guijuelo | Preview |
| 2019-12-01 12:00:36December 1, 2019 | Bilbao Athletic vs Izarra | 12:00:3612:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2019-12-08 12:00:34December 8, 2019 | Leioa vs Bilbao Athletic | 12:00:3412:00 pm | Segunda B | 2019/2020 | Sarriena | Preview |
| 2019-12-15 12:00:22December 15, 2019 | Bilbao Athletic vs Barakaldo | 12:00:2212:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2019-12-22 12:00:33December 22, 2019 | Real Sociedad B vs Bilbao Athletic | 12:00:3312:00 pm | Segunda B | 2019/2020 | Camp José Luis Orbegoza | Preview |
| 2019-12-29 12:00:45December 29, 2019 | Somorrostro vs Basconia | 12:00:4512:00 pm | Tercera | 2019/2020 | El Malecón | Preview |
| 2020-01-05 12:00:21January 5, 2020 | Bilbao Athletic vs Alavés B | 12:00:2112:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2020-01-12 12:00:23January 12, 2020 | Bilbao Athletic vs Haro | 12:00:2312:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2020-01-19 12:00:09January 19, 2020 | Calahorra vs Bilbao Athletic | 12:00:0912:00 pm | Segunda B | 2019/2020 | La Planilla | Preview |
| 2020-01-26 12:00:35January 26, 2020 | Bilbao Athletic vs Cultural Leonesa | 12:00:3512:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2020-02-02 12:00:25February 2, 2020 | Salamanca vs Bilbao Athletic | 12:00:2512:00 pm | Segunda B | 2019/2020 | Estadio Helmántico | Preview |
| 2020-02-09 12:00:45February 9, 2020 | Bilbao Athletic vs Tudelano | 12:00:4512:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2020-02-16 12:00:39February 16, 2020 | Osasuna B vs Bilbao Athletic | 12:00:3912:00 pm | Segunda B | 2019/2020 | El Sadar | Preview |
| 2020-02-23 12:00:37February 23, 2020 | Bilbao Athletic vs Arenas Club | 12:00:3712:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2020-03-01 12:00:16March 1, 2020 | Amorebieta vs Bilbao Athletic | 12:00:1612:00 pm | Segunda B | 2019/2020 | Urritxe | Preview |
| 2020-03-08 12:00:03March 8, 2020 | Bilbao Athletic vs Real Unión | 12:00:0312:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2020-03-15 12:00:55March 15, 2020 | Real Valladolid B vs Bilbao Athletic | 12:00:5512:00 pm | Segunda B | 2019/2020 | Ciudad Deportiva del Real Valladolid | Preview |
| 2020-03-22 12:00:16March 22, 2020 | Logroñés vs Bilbao Athletic | 12:00:1612:00 pm | Segunda B | 2019/2020 | La Gaunas | Preview |
| 2020-03-29 12:00:17March 29, 2020 | Bilbao Athletic vs Burgos | 12:00:1712:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2020-04-05 12:00:59April 5, 2020 | Unionistas vs Bilbao Athletic | 12:00:5912:00 pm | Segunda B | 2019/2020 | Pistas del Helmántico | Preview |
| 2020-04-12 12:00:00April 12, 2020 | Bilbao Athletic vs Guijuelo | 12:00:0012:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2020-04-19 12:00:48April 19, 2020 | Izarra vs Bilbao Athletic | 12:00:4812:00 pm | Segunda B | 2019/2020 | Merkatondoa | Preview |
| 2020-04-26 12:00:04April 26, 2020 | Bilbao Athletic vs Leioa | 12:00:0412:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2020-05-03 12:00:08May 3, 2020 | Barakaldo vs Bilbao Athletic | 12:00:0812:00 pm | Segunda B | 2019/2020 | Lasesarre | Preview |
| 2020-05-10 12:00:20May 10, 2020 | Bilbao Athletic vs Real Sociedad B | 12:00:2012:00 pm | Segunda B | 2019/2020 | Lezama | Preview |
| 2020-05-17 12:00:05May 17, 2020 | Alavés vs Bilbao Athletic | 12:00:0512:00 pm | Segunda B | 2019/2020 | José Luis Compañón | Preview |