2016–17 B.League season

The 2016–17 B.League season was the first season of the Japanese B.League.

B1 Relegation playoffs
Sendai 89ers and Akita Happinets were relegated to B2.

B2 Playoffs
Shimane Susanoo Magic and Nishinomiya Storks were promoted to B1. Tokyo Excellence and Kagoshima Rebnise were relegated to B3.