Who was/is the physically fittest boxer of all time???

It depends on the time, as nutritional knowledge and new training techniques have become available fighters have access to a better body through what we know today. I would say considering the time Jack Johnson is one of the most physically fit boxers of all time. His physique was unheard of at the time and even by today's standards he has the body of a Adonis. Mike Tyson was also incredibly fit and it showed in how he looked and the speed he had. Despite what many people think he never did weight training in his prime, only calisthenics, running and boxing. The result you saw was the body of a God, he was just a natural freak of nature. He had one of the thickest necks in heavyweight history. Manny Pacquiao is also very genetically gifted with his tree trunk calf muscles, soccer player thighs and powerful back and ab core muscles and huge shoulders. He has an incredible physique. Floyd Mayweather is another guy who's conditioning is top of the line. It's hard to say who has the fittest of all time, but those are the guys that come to my mind right away. When I think of heavyweights who were huge and ripped that doesn't not impress me as it's obvious they just did a lot of weightlifting which is bad for a boxer body.

chris arreola

Ricky Hatton

Rocky Marciano.

Joe Calzaghe easily I think. Unless there's another boxer who can throw punches every second of every round whilst being upwardly mobile and so fleet of footed. Ali, Jones, Marciano, Frazier, FMJ - none of these guys come close to that. Sure you could argue smaller fighters like Pac can do it but that's the thing: they're smaller = less mass to throw about. P4P Calzaghe. Everyone has their opinion I don't particularly love the guy but damn that man was super fit!!!

Mayweather seems to be in top shape year round, i respect that. B-Hop at 160. there was a time at 147 that DLH was in incredible shape. Mosley always looks like he's read to step in the ring. just naming recent fighter though cause i really don't know the training that the old school greats were in.

Brian London. He didn't have much skill as he himself admitted. But he had to have made it to contendership somehow. And being supremely fit was the way he did it. His running regime was legendary. Chin wasn't bad either

I always thought for a heavy Holyfield was always in magnificant shape Yeah. I agree, He didnt usually get tired in fights.

Well???????????? Apollo Creed

I always thought for a heavy Holyfield was always in magnificant shape

Funny quetsion in the era of PED's, lol.

I would say some boxers today are more fit than boxers who found during the london prize rules era. new training techniques and technology.

Hagler was never out of shape and could go all day. If you read about his training camps I can't imagine a more demanding regime. I think that massive chip on his shoulder acted as insipration. He never looked over trained either, like Tommy Hearns in the first Leonard fight for example. No question Tommy trained hard and was physically fit, but had left the last 3 rounds in the gym :-(

for some reason the guy in your avatar makes me wanna burn 1 - #17

Marvelous Marvin Hagler

"The Durable Dane" Battling Nelson went 42 rds with Joe Gans while getting his ass handed to him every round, gotta count for something om terms of being physically fit and possibly the most durable boxer ever.

The 75 rounds wasn't the same kind of boxing. First of all it was barefisted fighting with completely different stances, and the workrate was effectively maybe a tenth of what it is today, but probably more like a fifteenth of what it is today. It was a big deal when someone threw a punch back then. if it weren't for sullivan there would've been no dempsey, who really was the first 'de la hoya' if you wanna put it like that dempseys mom bought a JL sullivan biography from a traveling salesman. She read it aloud to her baby in hopes of a better life for her son. At 15, Demp left school, found work at a mine...Got fired after beating up a bully there, while at a saloon in the shipyards after work he saw a little dude named Jack "Doc" Kearns getting messed with by these 2 guys. Dempsey stole on em and with 2 shots they were horizonal, Doc became his manager and together this tandem would blaze a searing path, stepping across the prone bodies of miscellanous heavies starting with one punch hancock in salt lake city, who demp iced with a left hook

That fight I mentioned was the last Heavyweight Title fight fought under the 'London Prize Ring Rules' or bareknuckle boxing. It was between John L Sullivan and Jake Killrain. Sulivan won after Killrain threw in the towel in the 75th round. John L Sullivan is also recognised as the 1st Heavyweight Champ under the Marques of Queensbury Rules. I can just imagine Michael Buffer..... "Here it is.........The 75th and FINAL ROUND!!!" :lol1:

How can we compare todays fighters who only fight 12 rounds maximum to fighters of yesteryear??? Didn't John L Sullivan once fight bare fisted for 75 rounds? Surely that qualifies him as being more 'fit' than any fighter active today. I would love to know how that was possible. 75 rounds? If they were 3 minute rounds he would have been fighting for about 3 hours and 40 minutes aswell as the time inbetween rounds. That's pretty extreme if it's true.

Aaron Pryor Marciano Pacquiao Mayweather Ali SRL SRR