Many of the articles on the decision cite the same eye-popping figure: Americans wager an estimated US$150 billion in illegal sports bets every year.Īs a macro economist, I am used to dealing with big numbers. The big question on many minds – particular state officials and companies like MGM Resorts and DraftKings looking to cash in – is how much money is at stake. The Supreme Court on May 14 struck down a 25-year federal ban on sports betting outside of Nevada.