The undisputed lineage by division — and who holds each belt right now.
As of 17 October 2026 — and the belts are a mess. No division currently has an undisputed champion: most are split across four sanctioning bodies (WBA, WBC, IBF, WBO), with some belts vacant or in dispute. Switch between the undisputed lineage (the clean story) and a single body's current champions using the buttons below. Records and holders move fast — verify before relying on them.