Official betting is a legal form of sports wagering that is regulated by state laws and available through licensed sportsbooks. It is often offered in conjunction with a sports event, such as a football game or a major race, and can be placed on a variety of devices, including mobile phones. In addition, many states have launched official betting apps that allow players to make a bet on their favorite team or athlete.

The NFL is stepping up efforts to catch offenders, beefing up in-house technology and partnering with sportsbooks and integrity firms to create a system that monitors the betting market and flags suspicious activity. In addition, the NFL has increased security at stadiums and in the locker rooms to keep a closer eye on bettors and their equipment. It also is working to expand the number of locations where bets can be placed, so that fans can enjoy legal betting in a variety of settings.

All in-uniform league employees, including coaches, officials and trainers, are prohibited from placing any bets on NFL games. However, they can place bets on non-NFL events at legally operated sportsbooks. They are also prohibited from placing bets on any games they play in or from team or league facilities while they are traveling with the team.

Postseason officials are subject to a rigorous screening process that includes a criminal background check that reviews any criminal charges or convictions related to gambling or sports wagering. If they are found to be ineligible, they will be banned from future assignments. This process also covers any other criminal activities, such as identity theft, fraud, forgery and embezzlement.

In addition, the code prohibits any attempt to fix a match or any event within a match with the intention of gaining illegal betting profits. This is a serious offense and can lead to lifetime bans from professional sports. For example, professional gambler Joseph Sullivan paid eight members of the 1919 Chicago White Sox to lose the World Series. Sullivan was banned from baseball for life and the series is now known as the Black Sox Scandal.

A player prop is a bet that a specific player will perform a certain action during a game. This can be a total points, a first to X or an inning-based prop such as a first-base-on-error or a home run in the first inning. For a player prop to be graded, the player must have a plate appearance in the specified inning unless otherwise stated. If the player is ruled out of the game, bets on the player will be void.

Over/Under (totals) are bets that the sum of all scores in a game will be more or less than a set amount. These bets are based on real-time scoring data and change in real-time. The odds on a particular outcome are adjusted based on the amount of money wagered on that bet relative to the overall exchange, taking into account the bookmaker’s return rate. The more money is bet on a certain result, the lower the odds will become.