Antwerp Giants were the defending champions, but lost the quarter-finals against Oostende, who would go on to win the Cup outright.
On 2 July 2020, a new format and draw were announced by the EuroMillions League.
Six teams from the Top Division Men, the national second division, were joined by all Pro Basketball League (PBL) teams for a group stage.
[2] The format was changed again in December 2020, due to the COVID-19 pandemic.
The competition returned to its former format with only PBL teams.