| 1. Jornada | 12.09.2020 | Ponferradina | - | CD Castellón | 1:2 | ||||
| 2. Jornada | 19.09.2020 | CD Castellón | - | Málaga | 0:1 | ||||
| 3. Jornada | 26.09.2020 | UD Logroñés | - | CD Castellón | 1:1 | ||||
| 4. Jornada | 04.10.2020 | CD Castellón | - | Leganés | 2:0 |  |
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| 5. Jornada | 11.10.2020 | CF Fuenlabrada | - | CD Castellón | 1:1 | ||||
| 6. Jornada | 17.10.2020 | CD Castellón | - | Lugo | 0:1 | ||||
| 7. Jornada | 21.10.2020 | Las Palmas | - | CD Castellón | 2:1 | ||||
| 8. Jornada | 24.10.2020 | CD Castellón | - | Girona | 0:1 | ||||
| 9. Jornada | 28.10.2020 | CD Castellón | - | Almería | 1:2 | ||||
| 10. Jornada | 02.11.2020 | Sporting | - | CD Castellón | 1:0 | ||||
| 11. Jornada | 08.11.2020 | Real Oviedo | - | CD Castellón | 4:0 | |
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| 13. Jornada | 21.11.2020 | Rayo | - | CD Castellón | 2:1 | ||||
| 15. Jornada | 28.11.2020 | Mirandés | - | CD Castellón | 1:1 | ||||
| 16. Jornada | 02.12.2020 | CD Castellón | - | Zaragoza | 1:0 | ||||
| 17. Jornada | 07.12.2020 | Mallorca | - | CD Castellón | 3:1 | ||||
| 19. Jornada | 19.12.2020 | CE Sabadell | - | CD Castellón | 1:1 | |
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| 20. Jornada | 03.01.2021 | CD Castellón | - | Tenerife | 0:1 |
España