And this is only the beginning the industry is poised for explosive growth. Digital apps make sports betting possible on mobile devices, which gives it a foothold across America and threatens the business of brick-and-mortar casinos. California, which may become the biggest market of all, will vote on legalization next year.Īs betting expands, the boundaries that once separated gambling from sports media and professional sports leagues are disappearing. More money is now wagered on sports in New Jersey than in Nevada. Since the Supreme Court in 2018 ended federal bans on the industry’s expansion, dozens of states have legalized it, and a multibillion-dollar betting boom is afoot. once confined to Nevada - has gone mainstream.