The greatest stamina ever?? Marciano gets my vote.

[tony]

Marciano was superhuman stamina wise, he just didn't stop...

The old timers are even more impressive when you look back because they didn't have all these fancy diets or nutrition experts.

[jabsRstiff]

Henry Armstrong was a freak of nature.

Salvador Sanchez NEVER got tired. His facial epression never changed.

[stix]

All weight classes ... Remember the old time bareknuckle cats ... they went 50, 75, 100+ rounds sometimes ... Helluva lot of stamina

[Mr. Ryan]

Greatest stamina of all time? Easily the great Salvador Sanchez. Watch the 15th round of the Azumah Nelson fight. He had been in one of the toughest battles of his career, and wasn't even breathing hard! Its those mexican mountains that do the trick. I've trained in high elevations before, and that **** is crazy. When I lived in Suffern, NY, I used to train in the Catskills Mountains every morning. It's so hard to breathe up there, and its always cold, takes alot of determination.

[nohero]

Easily Marciano... Aaron Pryor and Salvador Sanchez are also excellent picks.

Marciano used to run 5 miles a day, even when he was sick and even on X-mas day... THAT is determination. He never quit, no matter how tired or beaten he was. He was rewarded with the only undefeated record of any heavyweight champion in history.

[t_tsuguri]

hagler comes to mind

[Eman]

Not the greatest stamina but closer to today is when Pacman fought MAB, he did not stop and i thought he could have went on for 50 rounds easy

[jack_the_rippuh]

I second the Hagler vote..

[Champoreeno]

Gotta go with Henry Armsrong.

[dansweeney]

gotta go with marciano, the championship rounds were always his alone, thats how he stayed unbeaten, he could go all day, thats how he got jersey joe in the 13th, he still had one punch kayo power that late in the fight