Legendary gambler Jim “Mattress Mack” McIngvale dropped a $1 million bet at the Horseshoe Casino in Westlake, Louisiana, in conjunction with its opening Monday.
The Horseshoe chain of casinos is owned by Caesars Entertainment Inc., a favorite of Mattress Mack’s. His bet—at eight-to-one odds—was on the No. 5 Houston Cougars to win the NCAA Tournament in spring 2023.
McIngvale flew down to the bayou to place the wager in person on its opening day. He is just a couple of months removed from his $75 million win, the largest payout in sports betting history, which was awarded after the Houston Astros won the World Series.