Season Description The 2019–20 ACB season, also known as Liga Endesa for sponsorship reasons, was the 37th season of the top Spanish professional basketball league, since its establishment in 1983. It started on 24 September 2019 with the first round of the regular season and ended on 30 June 2020 in an exceptional end-of-season tournament in Valencia due to the COVID-19 pandemic.
Real Madrid was the defending champion which was eliminated by San Pablo Burgos which qualified to semifinals for its first time. Kirolbet Baskonia won their fourth ACB and Spanish title after 10 years of the last Spanish title.