big difference in the fight was triple g's conditioning, i think he was better conditioned so he had more gas to throw more 3, 4 and 5 punch combinations. at the very end ot he first round you can see jacobs breathing very heavy and triple g very relaxed. at the end of the fight as well you can see jacobs a little more tired than triple g
He did get super tired after the beating he took in the 9th round. Jacobs was spent by then. His shots had little power and that's when ggg started coming forward. Wish he connected more but it started to become a brawl once ggg noticed he can take his punches. The weight helped him from getting KOd so I think it benefited him in that way
