what what boxer held the heavyweight title the longest
Vitali Klitschko : Heavyweight : (5 Years â 2 Months â 4 Days) : Vitali Klitschko another Ukrainian professional boxer who retain the title for 5 years and 2 months . Now dayâs he is currently serving as Politician in Ukraine . He is one of the toughest boxers in the Heavyweight category. Joe Louis : Heavyweight : (11 Years â 8 Months â 8 Days) : Joe Louis the leader in the longest reigning champions in the world in Heavyweight category . He retain the title World Heavyweight Champion from 1937 to 1949 .