Wladimir Klitschko
Klitschko holds the record for the longest cumulative heavyweight title reign of all time, with 4,382 days as world heavyweight champion. Wladimir has defeated 23 opponents for the world heavyweight championship, more than any other heavyweight in history. In 2011, Wladimir and his brother Vitali entered the Guinness World Records book as the pair of brothers with most world heavyweight title fight wins (30 at the time; 40 as of 2020). After defeating Alexander Povetkin in October 2013 and until his loss to Tyson Fury in November 2015, Klitschko was recognized as the lineal champion by the Transnational Boxing Rankings Board, while the WBA recognised him as one of its "Super champions", a distinction given to boxers who hold that title in addition to those by other sanctioning bodies in the same division. From 2004 to 2015, Wladimir and Vitali (himself a former world heavyweight champion) dominated heavyweight boxing, a period typically known as the "Klitschko Era" of the division.
Wladimir Klitschko-4