The 2015 New Zealand National Basketball League season was the 34th running of the competition. The season draw was supposed to be released in December 2014, but the withdrawal of Otago and Waikato prompted a rethink for the 2015 competition format. In the past, each team played each other twice in a 10-team competition, meaning each franchise had nine home games. However, with two teams pulling out of the 2015 season, it was decided the new format would be played over two and half rounds to keep incomes at a similar rate for the remaining sides. Each team was scheduled to play each other twice and play three of the sides in a third game.