What Boxer In History Could Realistically Defeat Floyd Mayweather?

[Vadrigar.]

Floyd is one of the most boring fighters to ever live. But in fairness, he's also one of the "best" (i.e. most difficult to beat, or even hit) fighters to ever live as well. So relative to the five weight classes (Super Featherweight, Lightweight, Light Welterweight, Welterweight, Junior Middleweight) that Floyd has competed in, what boxer in history do you feel would have had the best chance of defeating him?

My vote is "Sugar" Ray Leonard, and, of course, a prime Manny Pacquiao.

Castillo and he already did unofficially.

[Thraxox]

I like how you guys proclaim Floyd is some untouchable. He went life and death against a passed his prime Dela Hoya, a B-level Maidana, and lost to Castilo, but still "Can Floyd ever be beaten" threads? Damn you guys are a bit thick.

[New England]

at 147 there's almost no way he beats leonard, hearns, or robinson. they pick up where he leaves off with stellar power, especially hearns and robinson. leonard and robinson also had all time chins, and hearn's wasn't bad and he'd be tough to damage with his chin being so high off of the ground against a guy who is really about 5'8" at best.


at 154 he'd lose to those three as well, but i'd also add mike mccallum, another significantly bigger guy with good boxing skills, a sturdy chin, and very good power.


at 135 i still think he loses to duran. duran could do it all, and would be able to come forward and pressure if / when he had to. duran had a chin and power that carried all the way to middleweight, and he was very slick. i don't think he'd knock floyd out, but i see him winning on points.

at 130 floyd probably doesn't lose to anybody. it's really not a deep division historically, it's more of a migratory one where guys eventually settle at 135, or if they're 130 lbers in youth they'll even end up at WW.