Away History
| Spain Tercera Group 5 | 2018/05/06 10:00 | Pobla Mafumet v UE Castelldefels | L | 2-0 |
| Spain Tercera Group 5 | 2018/04/29 10:00 | Cerdanyola del Valles FC v UE Castelldefels | L | 3-1 |
| Spain Tercera Group 5 | 2018/04/22 10:00 | UE Castelldefels v FC Santfeliuenc | L | 0-1 |
| Spain Tercera Group 5 | 2018/04/15 10:00 | UE Vilassar de Mar v UE Castelldefels | D | 1-1 |
| Spain Tercera Group 5 | 2018/04/08 10:00 | UE Castelldefels v Santboia | D | 1-1 |
| Spain Tercera Group 5 | 2018/03/29 18:00 | Vilafranca v UE Castelldefels | W | 0-1 |
| Spain Tercera Group 5 | 2018/03/25 10:00 | UE Castelldefels v UE Figueres | D | 0-0 |
| Spain Tercera Group 5 | 2018/03/18 16:00 | Palamos v UE Castelldefels | L | 3-1 |