The over/under refers to the number of runs two teams will combine to score in a game. This bet option allows you to bet on the total runs scored to be either over or under the number set by the oddsmakers. The over/under number in baseball is always represented by half a run to prevent ties. Moneyline betting is a staple in the world of MLB odds. Here, you're simply predicting the game's winner. The favorites are signified by a negative sign next to their MLB odds, while underdog teams have a positive sign. The payout for winning bets is dictated by the odds when the bet was placed. Sports betting operators release MLB futures odds on a range of markets before the season begins. These odds update often and will be available to bet on throughout the season. These are often season-long or playoff-long wagers, which do not depend upon the result of a single baseball game.