| Jornada: 1 (11/04/2021) | ||
| POZGARRI B | 0 – 2 | LEIOAKO IBARAKI B |
| Descansa | – | SERVIGRAF |
| SANTURTZI B | 2 – 0 | ITURRIONDO REFORMAS DAIKER B |
| Jornada: 2 (18/04/2021) | ||
| LEIOAKO IBARAKI B | – | SANTURTZI B |
| Descansa | – | POZGARRI B |
| ITURRIONDO REFORMAS DAIKER B | – | SERVIGRAF |
| Jornada: 3 (25/04/2021) | ||
| Descansa | – | LEIOAKO IBARAKI B |
| POZGARRI B | – | ITURRIONDO REFORMAS DAIKER B |
| SANTURTZI B | – | SERVIGRAF |
| Jornada: 4 (02/05/2021) | ||
| Descansa | – | SANTURTZI B |
| ITURRIONDO REFORMAS DAIKER B | – | LEIOAKO IBARAKI B |
| SERVIGRAF | – | POZGARRI B |
| Jornada: 5 (09/05/2021) | ||
| Descansa | – | ITURRIONDO REFORMAS DAIKER B |
| LEIOAKO IBARAKI B | – | SERVIGRAF |
| POZGARRI B | – | SANTURTZI B |
| Jornada: 6 (16/05/2021) | ||
| LEIOAKO IBARAKI B | – | POZGARRI B |
| Descansa | – | SERVIGRAF |
| ITURRIONDO REFORMAS DAIKER B | – | SANTURTZI B |
| Jornada: 7 (23/05/2021) | ||
| SANTURTZI B | – | LEIOAKO IBARAKI B |
| Descansa | – | POZGARRI B |
| SERVIGRAF | – | ITURRIONDO REFORMAS DAIKER B |
| Jornada: 8 (30/05/2021) | ||
| Descansa | – | LEIOAKO IBARAKI B |
| ITURRIONDO REFORMAS DAIKER B | – | POZGARRI B |
| SERVIGRAF | – | SANTURTZI B |
| Jornada: 9 (06/06/2021) | ||
| Descansa | – | SANTURTZI B |
| LEIOAKO IBARAKI B | – | ITURRIONDO REFORMAS DAIKER B |
| POZGARRI B | – | SERVIGRAF |
| Jornada: 10 (13/06/2021) | ||
| Descansa | – | ITURRIONDO REFORMAS DAIKER B |
| SERVIGRAF | – | LEIOAKO IBARAKI B |
| SANTURTZI B | – | POZGARRI B |