Who is the most glass chinned heavyweight contender of all time

Jimmy Thunder

 

Julius Francis and Bruno

 

Lee Oma

 

Fred Fulton.

 

Fainting phil scott.Gave British HWs a bad name for years.

 

Lorenzo zanon, and I think Vonzell Johnson, a very good boxer, but couldn't seem to take the punch of champ caliber boxers

 

Maskaev had some real durability issues, being stopped in every one of his 7 losses, several of them being in the first few rounds.

 

Mike Williams. One time hot prospect and also a heavyweight champion in Rocky 5.

 

I lost my hat once in a slight breeze

 

Herbie Hide also had plenty going for him, murderous sledgehammer puncher with speed to burn up at heavyweight... A good chin was not one of those things however.

 

Lorenzo Zanon. Alfredo Evangelista. Marvis Frazier.

 

Don't know if he should be called a contender, but Lorenzo Zanon got a shot at Holmes. The guy had skills but folded up immediately when tapped on the chin.

 

A more recent example was Seth Mitchell. Signed with Golden Boy and hyped up as one of America’s new heavyweight prospects at a time when the Klitschkos ruled the division. Physically looked the part but it was obvious when he tried to move up in level of opponents that he couldn’t actually fight or had much of a chin.

 

Marvis Frazier

 

Mitchell couldn't even take a clean counter punch from puffed up cruiserweight Johnathon Banks, who wasn't much of a hitter regardless of his division. Chazz Witherspoon also shook Mitchell to his core and had him out on his feet.

For a "world class" fighter Seth Mitchell really did have terrible durability. Similar to Bruce Seldon in my opinion. Both were just so tight and high strung in there, muscle bound.