| Castellón beat Alcoyano 3-0 (H) on 25 Nov 2018 |
| Alcoyano beat Cornellà 2-1 (A) on 14 Oct 2018 |
| Cornellà beat Levante UD B 1-0 (H) on 1 Sep 2018 |
| Levante UD B beat Hércules 1-0 (A) on 7 Oct 2018 |
| Hércules beat Lleida Esportiu 1-0 (A) on 27 Oct 2018 |
| Lleida Esportiu beat Valencia B 2-0 (H) on 7 Oct 2018 |
| Valencia B beat Olot 3-0 (A) on 23 Sep 2018 |
| Olot beat Villarreal B 2-1 (A) on 10 Nov 2018 |
| Villarreal B beat Peralada 1-0 (A) on 7 Oct 2018 |
| Peralada beat Teruel 1-0 (A) on 27 Oct 2018 |
| Teruel beat Barcelona B 1-0 (H) on 11 Nov 2018 |
| Barcelona B beat UB Conquense 3-0 (A) on 22 Sep 2018 |
| UB Conquense beat Ejea 1-0 (A) on 26 Aug 2018 |
| Ejea beat Atlético Baleares 2-1 (H) on 9 Sep 2018 |
| Atlético Baleares beat Ebro 3-1 (A) on 11 Nov 2018 |
| Ebro beat Ontinyent 2-0 (A) on 18 Nov 2018 |
| Ontinyent beat Sabadell 2-0 (A) on 23 Sep 2018 |
| Sabadell beat RCD Espanyol B 3-2 (H) on 7 Oct 2018 |
| RCD Espanyol B beat Badalona 3-1 (A) on 26 Aug 2018 |
| Badalona beat Castellón 2-0 (H) on 28 Oct 2018 |
HWC: Thick arrows show the earliest chain of wins that passes through every team and returns to its start.