| Cerdanyola beat Teruel 3-0 (H) on 31 Oct 2021 |
| Teruel beat CE Andratx 1-0 (A) on 12 Sep 2021 |
| CE Andratx beat Peña Deportiva 4-3 (H) on 24 Oct 2021 |
| Peña Deportiva beat Brea 3-0 (H) on 19 Sep 2021 |
| Brea beat Numancia 1-0 (H) on 17 Oct 2021 |
| Numancia beat Formentera 2-1 (H) on 24 Oct 2021 |
| Formentera beat Ibiza 2-1 (H) on 5 Sep 2021 |
| Ibiza beat Terrassa 3-0 (H) on 24 Oct 2021 |
| Terrassa beat Huesca B 2-1 (H) on 5 Sep 2021 |
| Huesca B beat AE Prat 2-1 (H) on 17 Oct 2021 |
| AE Prat beat RCD Espanyol B 2-0 (H) on 12 Sep 2021 |
| RCD Espanyol B beat Ebro 3-0 (H) on 30 Oct 2021 |
| Ebro beat Badalona 2-0 (H) on 5 Sep 2021 |
| Badalona beat Ejea 2-0 (A) on 16 Oct 2021 |
| Ejea beat CE Europa 3-2 (A) on 24 Oct 2021 |
| CE Europa beat Lleida Esportiu 2-0 (A) on 19 Sep 2021 |
| Lleida Esportiu beat Tarazona 1-0 (A) on 10 Oct 2021 |
| Tarazona beat Cerdanyola 2-0 (H) on 24 Oct 2021 |
HWC: Thick arrows show the earliest chain of wins that passes through every team and returns to its start.