Face à face
| Europe - Matchs amicaux | 2017/07/31 17:00 | Portugalete v Athletic Bilbao B | L | 0-2 |
Home History
| Segunda B, Relegation Group 2 | 2020/10/25 10:30 | Portugalete v Amorebieta | D | 0-0 |
| Segunda B, Relegation Group 2 | 2020/10/18 16:00 | Racing Santander v Portugalete | D | 1-1 |
| Europe - Matchs amicaux | 2020/09/16 16:04 | Portugalete v Izarra | W | 1-0 |
| Espagne - Tercera - Barrages | 2020/08/08 17:30 | Portugalete v Sestao River | W | 1-0 |
| Espagne - Tercera - Barrages | 2020/07/18 17:30 | Portugalete v Basconia | W | 1-0 |
| Espagne - Tercera - Groupe 4 | 2020/03/08 10:30 | Portugalete v Tolosa | W | 4-1 |
| Espagne - Tercera - Groupe 4 | 2020/02/29 16:30 | Cultural de Durango v Portugalete | W | 0-3 |
| Espagne - Tercera - Groupe 4 | 2020/02/23 10:30 | Portugalete v Santurtzi | W | 1-0 |
Away History
| Segunda B, Relegation Group 2 | 2020/10/25 11:00 | Athletic Bilbao B v Racing Santander | L | 0-1 |
| Segunda B, Relegation Group 2 | 2020/10/18 16:00 | Arenas Club de Getxo v Athletic Bilbao B | D | 1-1 |
| Segunda B, Barrages d'accession | 2020/07/18 18:00 | Athletic Bilbao B v CD Badajoz | L | 6-7 |
| Segunda B, Relegation Group 2 | 2020/03/07 15:00 | Athletic Bilbao B v Real Unión | D | 3-3 |
| Segunda B, Relegation Group 2 | 2020/02/29 15:30 | Amorebieta v Athletic Bilbao B | L | 2-1 |
| Segunda B, Relegation Group 2 | 2020/02/22 17:30 | Athletic Bilbao B v Arenas Club de Getxo | D | 1-1 |
| Segunda B, Relegation Group 2 | 2020/02/15 15:30 | Osasuna B v Athletic Bilbao B | D | 1-1 |
| Segunda B, Relegation Group 2 | 2020/02/08 17:00 | Athletic Bilbao B v Tudelano | W | 1-0 |