2009–2010 NBB season was the second season of Novo Basquete Brasil, the Brazilian basketball league. It started on November 1, 2009, and was disputed by fourteen teams playing each other in round and runoff in the regular season. At the end of the regular season the first four teams qualify for the quarterfinals of the playoffs automatically now the team who finish between 5th and 12th positions will participate in the first round of the playoffs to define the other four teams in the quarterfinals.