There might be no one rooting harder for the Houston Astros in the 2022 World Series than Houston furniture store owner Jim McIngvale. The famous sports bettor, also known as "Mattress Mack" stands to win $75 million if the Astros prevail over the Philadelphia Phillies.

Known for making seven-figure wagers, McIngvale could make history during the Fall Classic. A $75 million profit would be the largest known payout ever for legal sports wagering.

McIngvale made multiple bets on the Astros throughout the 2022 MLB season. The high-stakes gambler says he's wagered close to $10 million total on Houston at an average of +750 odds.

"I just get bored to death with stability, which is why I guess I like all of these big bets," McIngvale told ESPN. "I thrive on chaos."

In May, WynnBet said McIngvale wagered $1 million with the sportsbook on the Astros to win the championship at +1200 odds. In July, Barstool Sportsbook announced that McIngvale bet $2 million on Houston at +533 odds, which would result in a $10.66 million profit if the Astros win the World Series.

Just hours before Game 1 of the World Series, Houston has -195 odds at Barstool Sportsbook to win the championship. A $2 million bet on the Astros now would result in a profit just north of $1.02 million. In order to win $75 million at -195, McIngvale would have to risk over $146 million.

McIngvale's gamble on the Astros failed last season. He told The Action Network that he had $20 million in total bets to win $35.6 million on Houston in the World Series. The Astros were eliminated by the Atlanta Braves in six games.

McIngvale says he would use his gambling winnings to give customers free furniture. He had a similar plan last year when he said that if the Astros won the championship he would give customers who bought certain mattresses that cost $3,000 or more their money back.

"Winning the bet is important but what's more important is giving money back to our customers who bought around $75 million worth of furniture," McIngvale said at a press conference.

Before sports betting became legal in the United States, McIngvale gained notoriety for allowing people affected by hurricanes to use his furniture showroom as shelter.

Alex Bregman Jose Altuve Astros
Alex Bregman #2 and Jose Altuve #27 of the Houston Astros celebrate their team's win over the Boston Red Sox in Game One of the American League Championship Series at Fenway Park on October 13, 2018 in Boston, Massachusetts. Elsa/Getty Images