Which big modern heavyweight had the best stamina?

So we just forget about slow starters?

 

Yes.

 

Ike Ibeabuchi is up there.

 

No evidence of that. You're going on him fighting 20+ rounds. But if 5 punches a round are thrown it doesn't mean a while lot. It's like saying someone walking a marathon is fitter than the mile world record holder.

 

No they aren't. He was throwing 90 punches a round against Purity while moving loads. Against Brewster he had a panic attack for whatever reason.

 

He's smaller than the criteria.

 

Exactly he hadn't good stamina against a slow, fat,unskilled fighter/bum like Puritty who destroyed him.
This panic attack thing is only an excuse.
Otherwise i think his stamina didn't look good against Fury or Joshua .

 

not Wlad so.His stamina in the ring was always suspect,Although he is always in tip top shape.

 

You would be on fairly safe grounds saying that a marathon runner, had better stamina than somebody who specialized in the one mile distance.

There is no way to make fighting for twenty rounds easy.

There is also a reason why rounds 12-15 were called "the championship rounds!"

 

His heart was always suspect. His physical stamina was always quite good.

 

I am not even a Bowe fan and I give it to him running away, with the caveat that we are only talking about the first Holyfield fight when he was in great shape. He quickly discovered twinkies and was never the same again.

 

This shows your lack of understanding of elite mile running. You need elite aerobic capacity to be a top miler. Steve Ovett won a half marathon against the best British marathon runners of his day on a whim.

 

And Mo Farah actually holds the 3rd fastest 1500 metre time despite specialising in the 10,000m