Which ATG heavyweight has the worst loss?

Joe wasn't knocked out in the first. It was the 12th. He knocked Max out in the first in the rematch.

 

At least Muhammad finished on his feet.

 

It’s a tie
Buster Douglas for Tyson because of who Tyson was at the time.

& Fat Pudding Ruiz vs A. Joshua
For the sheer hilarity of it.

 

Dempsey to fat Willlie Meehan

 

This question can have mulitple interoperations. Are we talking worst loss in their prime or close to it? Worse loss over their career?

For Tyson, McBride is a bad loss as McBride is/was barely relevant, Douglas was a huge upset against a still young Mike but a shock at the time.

 

Johnson / Hart
Dempsey / Flynn

 

Jeffries against Johnson in 1910.

 

Prime Foremans loss to a 33 year old supposedly finished Ali was a shocker Foreman took a long time to recover from that.!!

 

Apologies for my temporary insanity, LoadedGlove. I stand corrected and thanks for sorting me out. I cannot believe that I made such a stupid mistake about facts that I already knew. Perhaps it is time for me to change my medicine lol.

 

Worst part is, I wasn't even drunk when I wrote what I wrote lol

 

My thinking aswell, Tyson losing to Douglas was shocking at the time but Douglas was a talented heavyweight. Tyson losing to McBride is atrocious even if Mike was done as a top level fighter.

 

Can't deny that.

 

Lewis McCall for me.

 

Flynn was probably a fix.

 

The worst loss? Gotta be Foreman aginst Morrison.