I don't watch UFC and sorry for this question but how much is the weight difference between guys? I mean, were Merab and Suga the same weight in this fight? Or is it okay to have a 5-10 kilos difference? As far as I know, both fighters should be the same weight but I don't understand how Aljo and Merab are the same weight. Sean and Aljo are too tall but Aljo is very muscular. Merab is very short and he has to go through extreme weight cuts, what kind of weight cuts does Aljo go then? He is very tall and muscular.
There is no clear answer for your question about Merab, Suga and Aljo weight. On a weigh-ins day they must show
126-135 lb (57-61 kg) on scales to fit into bantamweight. If Merab or Suga would have +1lb or extra 1gramm, the fight will turn instantly into non-title fight. But now comes tricky part, after weight-ins, fighters start to drink water and eat, making their real weight during fight as unknown. During 1 day before the fight they are able to regain 5-10kg back. Aljo has now moved to
featherweight which is 136–145 lb (61.7-65.8 kg). I would say that during fight, Suga and Merab had featherweight+ weigh
Bellator promotion have more fair rules concerning weight. Fighter are weighed a day before fight and hour before fight, and they must show not identical, but a very close weight. Having +100-200gramms is ok, but to have +1kg is forbidden.