Total Number of Points: What is OVER/UNDER Betting? Sports betting, especially when it comes to the NFL, often relies on moneylines and point spreads where you’re wagering on who will win the game outright or against the spread (ATS). Although these are exciting bets to make, sportsbooks also offer OVER/UNDER odds. Here at Odds Shark, we want you to have options when it comes to betting on sports. Whether you’re looking to bet on the Super Bowl, a regular-season NFL game, college football, the NBA or college basketball, a game total bet provides an interesting wager that involves minimal math that you can do in your head or on your smartphone’s calculator.