Sportsbooks are bracing for their largest collective loss in sports betting history.

If the Astros win the World Series over the Philadelphia Phillies, Houston furniture store owner Jim “Mattress Mack” McIngvale will win a record $72.6 million from six different books from $10 million in futures bets on his hometown team.

“I suspect that will be the single biggest win on an event by one person anywhere on the globe ever,” BetMGM vice president of trading Jason Scott said…

McIngvale, 71, said that with a gleam in his eye because he isn’t gambling in the traditional sense. The wagers are the latest in a series of bets to reduce risk on promotions at his Gallery Furniture stores.