[13] The labels in the parentheses show how each team qualified for the place of its starting round (TH: Euroleague title holders): Eight teams participated in a single-venue tournament format that took place in Ostend, Belgium, from 23 to 26 September.

Two teams from the same country or league could not be drawn together in the same Regular Season group.

CSKA Moscow FC Barcelona Olympiacos Real Madrid Maccabi Electra Panathinaikos Valencia Anadolu Efes Unicaja Fenerbahçe Ülker Laboral Kutxa Žalgiris Alba Berlin Galatasaray EA7 Milano Nizhny Novgorod † Crvena Zvezda Cedevita Bayern Munich Dinamo Sassari PGE Turów † Neptūnas † Limoges †

If teams were level on record at the end of the Regular Season, tiebreakers were applied in the following order:

If teams were level on record at the end of the Top 16, tiebreakers were applied in the following order: See the detailed group stage page for tiebreakers if two or more teams are equal on points.