| 1. Round | 20/08/2017 | Peña Sport FC | - | Real Unión | 0:1 | ||||
| 2. Round | 26/08/2017 | Arenas de Getxo | - | Peña Sport FC | 1:0 | ||||
| 3. Round | 03/09/2017 | Peña Sport FC | - | SD Gernika | 0:1 | ||||
| 4. Round | 10/09/2017 | CD Mirandés | - | Peña Sport FC | 1:0 | ||||
| 5. Round | 17/09/2017 | Peña Sport FC | - | Sporting Gijón B | 1:6 | ||||
| 6. Round | 24/09/2017 | Racing Santander | - | Peña Sport FC | 2:0 | ||||
| 7. Round | 30/09/2017 | SD Leioa | - | Peña Sport FC | 3:0 | ||||
| 8. Round | 08/10/2017 | Peña Sport FC | - | CD Izarra | 0:1 | ||||
| 11. Round | 28/10/2017 | Barakaldo CF | - | Peña Sport FC | 2:0 |
Spain