Does anyone fight at there own weight class?

problem with weight cutting is that its a fine line between being weight drained and being strong.. it can be like a gamble each fighter takes... basically there's probably not many fighters whose best possible fighting weight is exactly the weight they're fighting at - whether its 147, 175 whatever.. a lot fighters probably come in at 65% to 90% of their full strength because of various levels of weight-draining..

Wladmir Klitschko does,