[1] Participating teams compete in the regular season using home tournament format.
The regular season divided into 5 series, each with different host cities.
The top teams in final overall standings will continue to the championship playoffs.
There is also a pre-season warm-up tournament held before the regular season.
The championship series began on Saturday May 18, 2013, and concludes with the 2013 NBL Indonesia Finals, which began on May 26 between the Dell Aspac Jakarta and the Pelita Jaya Energi-MP Jakarta All matches were played in GOR UNY in Universitas Negeri Yogyakarta, Yogyakarta.