Riddick Bowe's punch output in Holyfield I was pretty impressive. Holyfield is not a particularly strong benchmark for stamina, but the way Bowe cleaned up the best-ever physical version of Holyfield in rounds 10,11 and 12 was excellent, especially given the torrid pace and intensity of the preceding rounds. Its a good question anyhow. The Laws of diminishing returns, then actual losses, really come into play with increased size into SuperHeavy status, and stamina is one of the things that really suffers. Mobility is the other.
Valuev is able to maintain his stamina commendably well through all twelve rounds, but that's more to do with keeping a steady pace rather than a notable volume.
Vitali was pretty good ,Valuev, Vlad looked fresh in the 11th rd vs Peter, Bowe had a few but fizzled after 7 rds
