42 teams (the cup title holder, national domestic league champions, and a variable number of other clubs from the most important national domestic leagues) played knock-out rounds on a home and away basis. The aggregate score of both games decided the winner.
The sixteen remaining teams after the knock-out rounds entered the Regular Season Group Stage, divided into two groups of eight teams, playing a round-robin. The final standing was based on individual wins and defeats. In the case of a tie between two or more teams after the group stage, the following criteria was used to decide the final classification: 1) number of wins in one-to-one games between the teams; 2) basket average between the teams; 3) general basket average within the group.
The top four teams from each group after the Regular Season Group Stage qualified for a Quarterfinal Playoff (X-pairings, best of 3 games).
The four winners of the Quarterfinal Playoff qualified for the Final Stage (Final Four), which was played at a predetermined venue.