On Tuesday, a bettor put $500,000 on the Nuggets moneyline at -110 odds. That meant all the Nuggets had to do was win, and that bettor would cash out for a little more than $954,000. So when Jazz guard Mike Conley pulled up for a 3-pointer at the buzzer, and it went halfway down, one bettor had a nearly $1 million swing on whether it went in. It rimmed out. That cost BetMGM a fortune.