You're not trying to guess the exact number. Over/Under Betting, Explained Table of ContentsĪs a bettor, you're trying to predict whether the total score will go over or under a certain amount set by the sportsbook. Over/under betting has many more uses than just the final score now - you can wager on a quarterback over or under 249 passing yards, or a team under 2.5 touchdowns.īut wagering on the total number of points in a game is still among the most popular betting options available and usually listed right next to the point spread and moneyline, so when someone refers to the over/under in an NFL game, it's likely they're referring to the total points scored.