B.League
Basketball · Japan
Japan’s pro basketball league — mid-reboot toward a Premier division with salary cap and Asia player rules.
Updated Jul 23, 2026
- Founded
- 2016 (merger era); Premier reboot 2026–27
- Headquarters
- Tokyo
Key stats
- 2026–27 B.League Premier: 26 permanent clubs, salary cap, Asia quotas
- Combined league-and-club revenue cited near ¥70 billion (~$500 million)
- Clearest structural basketball bet in APAC outside China
- Aims to convert attendance into export-grade talent
Japan’s B.League formed from earlier pro mergers and has spent a decade trying to turn basketball into a second national winter sport behind baseball.
The 2026–27 Premier reboot — fixed clubs, salary cap, Asia player quotas — is the clearest attempt yet to professionalize the product for investors and fans.
Revenue figures near half a billion dollars across league and clubs show scale is growing; the missing piece has been consistent talent export and national-team translation.
If Premier produces players who stick in stronger foreign leagues, B.League jumps the Index. If it only improves arenas and merchandise, it stays a well-run domestic league — success of a different kind, but not CBA-threatening power.
On the Medalist Index
Related reading
Browse the league index or return to the Medalist Index.