[1] San Pablo Burgos won its first Champions League title after defeating AEK.

[3] The round of 16 and quarter-finals changed to best-of-three playoff series instead of two legs.

On 12 March 2020, FIBA suspended all its competitions, including the BCL, due to the COVID-19 pandemic.

[1] On 31 March, the BCL decided the season will have to be finished with a "Final Eight" tournament planned for 30 September until 4 October.

A total of 48 teams from 29 countries will participate in the 2019–20 Basketball Champions League.

[7] League positions after eventual playoffs of the previous season shown in parentheses (FEC: FIBA Europe Cup title holders.

The concluding Final Eight tournament will be played in Athens, Greece, between 30 September and 4 October 2020.

[11] After each gameday a selection of five players with the highest efficiency ratings is made by the Basketball Champions League.

Afterwards, the official website decides which player is crowned Game Day MVP.