I am talking about the amount boiled off and then regained in the ring. I'm thinking it would be in the dimensions of 30lbs?
I'm not sure. One that sticks in my memory was Julio Cesar Chavez Jnr. who in his fight with Sergio Martinez weighed in at 158, but his weight in the ring was 182, which is 24 pounds heavier.
Michael Moorer must have ben pretty huge in the ring at LHW. He went from 175 to weighing in at 213 lbs the very next fight. Yarde looks huge. I wouldn't be surprised if he is around 200 lbs in the ring.
quite a few, hundreds in fact, either side of 20lbs for sure... but yes there will have been a good few around the 25 - 30lb mark too.
Yeah, Chavez Jr is the largest confirmed case I can remember off the top of my head, though you have to wonder about some others who have managed to avoid having their fight night weights exposed. Chavez Jr was regularly around 181, 182 after squeezing down to 160 or lower for the weigh ins back in the day. Not sure if any figures exist, but I'd be interested to know what Joe Smith Jr weighs on fight nights. Fair enough, Bivol isn't a particularly big Light-Heavy and could probably make 168 if he wanted, but the size difference between him and Smith in the ring looked very considerable.
I think a weigh-in before each fight should be mandatory, it gives us a better impression on the fight and really highlights the heroics by certain fighters. For instance, I bet Loma was at least a weight division heavier than Lomachenko when they fought.
Chavez JR and Danny Jacob's are the two that come to mind. Both would cut to 160 and be in the 180's on fight night. On another note, the gym I go to now has mostly MMA guys and there are two in particular that rehydrate 20 plus pounds. One guy walks around at 210 trains down to 185 then cuts to make 170. He rehydrated to the 190's on fight night.
When Archie Moore was regularly bouncing between heavyweight and light heavyweight ... he used to cut weight to get down to light heavyweight for the occasional defense by chewing his food ... and then spitting it out instead of swallowing it. He said you got all the nutrients that way.
This relates to weight cuts but previously the Nevada Sport commission allowed the use of IVs. Uriah Faber a UFC fighter says he commonly cut 21 pounds to make weight late in his career. He said right after the weigh-in that he would need 2 full IV bags to re-hydrate. I wonder if thus also applies to boxers. I do know that ODLH used one IV bag after the Pacman weighin.
IV bags make sense. As far as I'm aware, a person can't just gulp down a gallon of water straight after the weigh-in or it could actually make them sick. The IV is drip fed obviously, so initially it's the safest way to get the electrolytes back in. I wouldn't be surprised if a lot don't use diuretics either, to cut weight that fast. It's not one of the techniques ever discussed, but it wouldn't surprise me at all. Whatever exactly they are doing, they've got it down to a science now.
The most I have heard about is Gerald McClellan in the rematch with Julian Jackson. Allegedly, he weighed in at 160 on the scales and then came into the ring at 198.