| 2. Round | 01/09/2018 | CD Mirandés | - | Racing Santander | 1:1 |  |
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| 3. Round | 09/09/2018 | SCD Durango | - | CD Mirandés | 1:4 | ||||
| 4. Round | 16/09/2018 | CD Mirandés | - | Barakaldo CF | 1:1 | |
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| 5. Round | 23/09/2018 | UP Langreo | - | CD Mirandés | 0:1 | ||||
| 6. Round | 30/09/2018 | CD Mirandés | - | Sporting Gijón B | 1:1 | ||||
| 7. Round | 07/10/2018 | CD Calahorra | - | CD Mirandés | 2:3 | ||||
| 9. Round | 20/10/2018 | Athletic Club B | - | CD Mirandés | 1:3 | ||||
| 13. Round | 17/11/2018 | SD Leioa | - | CD Mirandés | 1:0 |
Spain