Topline. Texas furniture kingpin Jim McIngvale better known as Mattress Mack  won $75 million on Saturday after his bet that the Houston Astros would win the World Series paid off, taking home what is believed to be the largest payout in legal sports betting history.

Houston furniture magnate Jim "Mattress Mack" McIngvale successfully hedged on his store's promotion, pocketing approximately $75 million in winnings. A sum thought to be the largest recorded win in legal sports betting history.

Decimal odds explained\n\n For example, aR$100 bet made at decimal odds of 3.00 would returnR$300 ($100 x 3.00):R$200 in profit and the originalR$100 amount risked. AR$100 bet made at decimal odds of 1.50 would returnR$150:R$50 in profit and the originalR$100 amount risked.

For example, 3/1 odds mean you profit three times the amount you wagered. AR$1 bet at 3/1 would pay outR$4 in total, or aR$3 profit and yourR$1 original wager. Conversely, 1/3 odds mean you profit a third of what you wagered. AR$30 bet on 1/3 odds would returnR$40 total, or aR$10 profit and yourR$10 original wager.