Ring stamina is a very big part mental, it's important to be relaxed and it's also important to breath every second of the fight. When things get tight some men just stop breathing for a few seconds, those few seconds become minutes, and those minutes become rounds of not breathing over time. You need every bit of oxygen you can get. Not getting frustrated is also very important to stay efficient.
Good point but it's actually getting rid of CO2 that's really important so it's the breathing out that is the main part, a big breath out gets rid of the accumulating carbon dioxide and you breath in deeper automatically afterwards.
See that's someone who physiologically speaking would have no stamina, he didn't do roadwork and was overweight so his VO2max would likely be very low. But because he was so efficient and relaxed in the ring he would never get too tired. So he didn't really have good stamina at all, he just used less energy and used energy well when it was required.
Macklins got good stamina he sets a high work through most of his fights. Fair enough he was out on his feet by the end of the sturm fight but he was going at a relentless pace
Simple: the guys with the highest punch-count who don't get tired at all over 12 rounds. Joe Calzaghe, Antonio Margarito, Paul Williams come to mind.
he did get tired compard to the mayweather we are used to seeing.. however he did throw like 300 more punches then we are used to seeing he took one of the middle rounds off completely if i remember correctly
Strongly disagree about Sergio This is the guy who had a habit of taking the middle rounds off. He was dead tired towards the end of the first Williams fight