It started on 21 September 2019 with the first round of the regular season and was curtailed on 8 May 2020 due to the COVID-19 pandemic.
On March 10, 2020, the Government of Spain decreed that all games would be played behind closed doors due to the COVID-19 pandemic.
[4] On March 25, 2020, the Spanish Basketball Federation extended the postponement of the games until April 12 due to the extension of state of alarm.
[5] On May 8, 2020, the Spanish Basketball Federation finished prematurely the regular season due to force majeure with the following decisions:[6] On June 22, 2020, the Spanish Basketball Federation announced the six teams that promoted to LEB Plata.
The Conference A consisted of 2 groups of 15 and 14 teams from Galicia, Asturias, Cantabria, Castile and León, Navarre, La Rioja and Basque Country.