A plus (+) represents longer odds, in which case you'll win more for your wager, while a minus (-) means you're betting on a more likely outcome (as deemed by the sportsbook) and will win less when you emerge victorious. For example,R$100 on +110 odds wins youR$110, whileR$110 on -110 odds wins youR$100.

A spread of +7.5 means that the team must either win the game or lose by 7 or less points/goals/runs for the spread bet to win. A spread bet is a bet on the margin of victory with a handicap (or line) attached to it, in this case the handicap is +7.5.

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

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.