
3. Tim Sylvia
Sure, Sylvia has some ferocious knockouts on his record, but the former two-time heavyweight champion also has some stinkers. Remember, we’re only focusing on his time as a champion here. It’s his pair of title defenses that earn him a spot on this list.

While his first clash against Andrei Arlovski was epic, the rematch was absolutely dire. That’s not being disrespectful, it’s just a fact. There are few things as boring as a bad heavyweight fight, so when he served up another turgid decision against Jeff Monson, his reputation was stained forever.