Biggest weight difference between the fighter scoring the knockout and the knockoutee?

Joe Walcott, the Barbados Demon, knocked out HW's and he weighed not much more than 140.
Although the HW's he beat were under 200 pounds.

 

I remember vaguely Ray Leonard who didn't weigh much more than
his fighting weight (Welterweight) dropping a armature heavyweight
with a body shot.
It went from a simple exhibition to a fight because the kid allegedly
targeted Leonards face right after the eye surgery.
Lesson learned if I remember right....

 

Kid McCoy was reportedly outweighed by at least 70 lbs when he KO'd Herr Placke, & Bob Fitz was reportedly outweighed by about 90 lbs when he KO'd Ed Dunkhorst.

 

Jack Johnson knocking out Stanley Ketchel comes to mind...

 

Can’t recall the exact weights or if it represents the record but there was huge difference between Bob Fitzsimmons and his KO victim, Ed Dunkhorst.

 

This is the one, Flash.

Ray always had the all important killer instinct - what is it they say these days? FAFO?

This content is protected

 

If Jack Dempsey's true weight for Willard was 180 as Doc Kearns claimed, then he was outweighed by 65 pounds. Louis also destroyed some monsters when under 200, like Carnera. (Joe was 196 to Primo's 261.) Don't know the weight differential between Mickey Walker and Arthur DeKuh because BoxWRECK is not worth my membership there.

 

If Tommy Loughran had strengthened his hands like Gene Tunney did while working as a lumberjack, then it could've been him. He was rocking Carnera repeatedly in their title bout, and we have it on camera.

 

The 5’8 1/2” 203 lb. Turkey Thompson knocking out the 6’8” 296 lb. Ben Moroz in 2 rounds for a 93 lb. difference.

 

I suspect the record may belong to Kirk Lawton, who gave away 175 lbs (251 to 426½) when he stopped Butterbean (Eric Esch) in two rounds, back in 2013!

 

They told me there would be no math on this test!

 

Hi Chevy! (Hey, what's the point of a user name if you're gonna tell everybody who you really are?)

 

Fixed...