Why is stamina an issue for some fighters?

[Larry the boss]

Always fight or play in at your speed and momentum or the next person will drain your gas tank and stall you

[sugarsmosley]

Not genetics IMO.Either they're working on their cardio or they're not as hard as they should. Plus getting punched and missing punches take alot from you. That's why rigo and Floyd don't get do tired. They're not wasting punches and not getting hit alot

genetics def play a factor.... Just think of it this way pretty much all pro top level fighters train extremely hard... in the end some have better stamina then others.


a guy like gamboa could do the same exact training as pacquiao but despite that i bet u gamboa is going to fade at one pt while pacman wont,, just using an example

[champion4ever]

Stamina issues usually effect the puncher/slugger type fighter. They tend to punch themselves out more than any other fighting style; Especially the heavyweights. I guess it's because they like for their fights to end early with throwing so many more power punches, by putting so much force and body weight behind their shots that they forget the jab. Then the longer the fight goes their punches lose steam. Examples of these type of fighters are: Miguel Cotto, Pre Manny Steward Wladimir Klitschko, Thomas Hearns and George Foreman and Earnie Shavers.

[Showtime..]

Simple..some throw to much in every punch, some do not know how to relax in a fight. It basically comes down to that..you do not throw ko punches with every shot and you have to learn how to breath and remain calm....over excitment and nervousness can kill your gas tank in any sport

Part of the reason why Bradley and JMM both gassed like crazy after the 5th round with Pacquiao. Manny never stops coming and they can't keep up.

Similar to Cotto-Margarito. Cotto threw it all, but couldn't sustain it and Margs just ran him over.