Wonder how much is side bet money and what each fighter brings home? Winner take all? Can charge anywhere from $40 to $100+ a head for the crowd at some I have been to.. Did not see any markers (bookies) taking odds or bets during the fight clips. Hope these fighters are not doing this for nothing. Some very nice looking women come to some of those things.. Seen a few guy's stitched up right after the fight sitting on the floor or old box. Bare knuckles do a lot of damage. Some will use leather gloves/wraps (very rare) which do even more damage than bare knuckles. At times, a few guys will try to hid a roll of quarters (or a small lead bar) in their close fist when wearing gloves or even the bare hand fights. Showing open hands before the match starts is a gesture of respect for each other, some do not even that. Usually a scatter gun around, loaned with impacts and not real ammo, to threaten crowd control if thing get too heated. Not to worry about the fighters, it's the potential mini riot when alcohol/drugs and betting money is combined in these events.