Klitschko has officially retired from boxing, dashing any hopes of a rematch with Anthony Joshua. Wladimir Klitschko Retires From Boxing - Boxing News He retires with a won loss record of 64 wins, 5 losses and dominated the heavyweight division for nine years. How do you see his legacy? Should Klitschko rank with the all-time greats in the heavyweight division? Or did he dominate a weak heavyweight class?