An over–under or over/under bet is a wager in which a sportsbook will predict a number for a statistic in a given game, and bettors wager that the actual number in the game will be either higher or lower than that number.

How does the over under work?

A bet on the over means you think both teams will combine to score more goals, points, or runs than the total listed. Conversely, an under bet means you think there will be less than the total listed.

What does over under mean example?

For example, in Super Bowl XXXIX, most Las Vegas casinos set the over–under for the score of the game at 46.0. ... A bettor could wager that the combined score of the two teams would be either more than or less than that number. Since the combined score of that game was 45, anyone who had bet on "under" won.