He won the belt at WW :/ Whatever i dont have the energy or care enough to argue with you about it. He also beat Renzo at WW... Beat Hughes twice. Split decisioned GSP. He was just fine as a WW
in the early days of the ufc they was 155 for period of times so when he might been fighting at 170 there wasnt gsp or matt hughes at first tthere. once those guys started to come along bj penn was out powered buy larger stronger fighters. bj went back to 155 when the ufc make the morden weight classes there are now.
