Most days as a heavyweight boxing champion

Most days as a heavyweight boxing champion
Who
Wladimir Klitschko
What
4,382 day(s)
Where
Not Applicable ()
When

Wladimir Klitschko (Ukraine) spent a total of 4,382 days as heavyweight champion in two spells: from 14 October 2000–8 March 2003 (875 days) and 22 April 2006–28 November 2015 (3,507 days). He edged ahead of Joe Louis, whose reign of 4,270 days as heavyweight champion from 22 June 1937–1 March 1949 was achieved in one spell, and who thus remains the longest reigning boxing world champion at any weight division.