Scale Jumpers: Ranking Boxing's Best (and Worst) Weight Class Moves
Moving up — or down — in weight is one of the highest-risk, highest-reward decisions a fighter can make. Some guys find a new home and dominate. Others walk into a division and get schooled in a hurry. We rank the most significant weight class transitions of the modern era and lay out a framework for figuring out who's got a shot at pulling it off.