| Teruel beat Formentera 1-0 (A) on 3 Oct 2021 |
| Formentera beat Ebro 1-0 (H) on 17 Oct 2021 |
| Ebro beat CE Europa 2-1 (A) on 12 Sep 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 CE Andratx 2-0 (H) on 5 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 Cerdanyola 2-0 (H) on 12 Sep 2021 |
| Cerdanyola beat Ibiza 3-1 (H) on 17 Oct 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 Badalona 1-0 (H) on 19 Sep 2021 |
| Badalona beat Ejea 2-0 (A) on 16 Oct 2021 |
FLP: Thick arrows show the earliest chain of wins that passes through every team.