On May 23, 2017, ABA League Assembly announced that 12 clubs would be competing in the league in the 2017–18 season.[1] Participants were decided based on the following allocation:[1]
Two additional spots were allocated to teams from countries whose clubs had highest coefficients in country rankings during the 2016–17 season. Those two countries were Serbia and Montenegro.[1]
National standings
For ten teams, per country allocation was determined based on a coefficient which was calculated as the sum of all victories that clubs from a certain country had achieved during the previous regular season divided by the number of clubs from that country. The remaining spots were awarded bye the league board which selected two wild cards.[2]
The semi-finals was played in a best-of-three format, while the Finals were played in a best-of-five format. Playoffs started on 17 March 2018, while the Finals ended on 14 April 2018.[11]