CompuBox takes a detailed look at the past four fights for heavyweight champions Wladimir Klitschko and David Haye, who in a few hours will collide for the WBO/IBO/WBA/IBF titles in Hamburg, Germany. Klitschko has a big advantage in activity, throwing more jabs per round than Haye throws total punches per round. 67% of Klitschko's landed punches were jabs and 70% of Klitschko's thrown punches were jabs. Both landed only 6 power punches per round, which is half the heavyweight average.