Houston furniture magnate Jim "Mattress Mack" McIngvale made history Saturday night with the largest legal sports betting payout in history  $75 million thanks to the Houston Astros' triumph in the World Series.

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.