After moving up to 185 pounds to defeat Rodrigo Gracie at Rumble on the Rock 6, B.J. Penn had a revelation — why don’t I just keep eating? Four months later, he competed in his first and only 205-pound match, facing off against Lyoto Machida at K-1 HERO’s 1 (3/26/05). Machida was only 5-0 at the time, but he had already disposed of Stephan Bonnar and Rich Franklin in his second and third fights, respectively. Though Penn threatened from the top in the first round, he had no answer for Lyoto’s size advantage and defensive skills, and lost the decision. Boring? Sure, maybe a little. But it was a significant moment in the careers of both fighters; Penn would drop back down to welterweight immediately after.
(Fight starts at the 5:10 mark.)