If Duke wins it all, one bettor could turn a $5, five-leg parlay into a huge payday, complementing the $20k they've already made. Patrick Everson has the scoop.

However, Duke has the best player in the country, Cooper Flagg, the highest-rated offense, the tallest average height, the No. 1 effective field goal percentage on defense, and the sixth-slowest paced defense.

That led New Jersey’s Department of Gaming Enforcement and the Nevada Gaming Commission to serve Kalshi to block its service within the state’s borders. That led to Robinhood blocking predictions for users in New Jersey, where this weekend’s East Regional tournament was played.