The unnamed sports fan put together a 50-leg multi with Sportsbet and picked all 50 of his selections correctly to earn a total of $170,330.95.

Mattress Mack Wins $72.66 Million, Biggest Win in Sports Betting History.

 To calculate your potential payout on an underdog, all you need to do is multiply your stakes (the amount of money you wagered) by the value resulting from the moneyline odds divided by 100. Put simply: Potential profit = Wager x (Odds/100).

The NFL Is the Most Popular Sport to Bet On.