[1] The league was organized by the Hellenic Basketball Federation.

The season was prematurely cancelled, due to the COVID-19 pandemic.

Due to that, none of the league's teams were relegated.

Source: Basket.gr * Diagoras Dryopideon declined to be promoted to the Greek Basket League.

** Olympiacos B started the season with a 6-point deduction, a rebuke imposed by the Hellenic Basketball Federation as a result of senior club Olympiacos's forfeiting of several Greek Basket League and Greek Cup games, during the 2018–19 season.