Sports betting analysts believe March Madness could be the first U.S. sporting event to generate more than a billion dollars in bets. Eric Ramsey with PlayUSA.com says the last time we had an NCAA Tournament in 2019, sports gambling was legal in just seven states and brought in around $440 million in bets. Now, 20 states — including Indiana — have legal sports betting. Ramsey says every single game of March Madness being in a state where it’s legal will help as well. The tournament begins Thursday night.