The 2008–09 Season of BAI Basket (31st edition) ran from November 20, 2008 through May 16, 2009, with 12 teams playing in three different stages: in stage one (regular season) teams played a double round robin system.
In stage two, the six best teams played a single round robin tournament in serie A and the last six did the same for the consolation group, serie B.
Finally, in stage three (final four) the best four teams from serie A played in a round robin at four rounds for the title.
The home team is listed on the left-hand column.The rightmost column and the bottom row list the teams' home and away records respectively.
The home team is listed on the left-hand column.The rightmost column and the bottom row list the teams' home and away records respectively.