Official betting is a form of sports wagering that uses data from the game’s official league to determine the outcome. The goal of official betting is to make it easier for bettors to place wagers while ensuring that the odds are as fair and accurate as possible.

The most commonly used official betting markets are player props, team totals, and run lines. These markets are settled based on the game’s official statistics, and can be found on the sportsbook’s website or by another reputable statistical provider.

Player Props – The player must start and play at least one inning of the game for the bet to have action. If a player is subbed in later, the bet is void and won’t be refunded.

Team Totals – The team’s total runs must be reached for the game to have any moneyline action. This is different than the over/under, which becomes official once the team reaches five innings (or if the home team leads after 4.5 innings).

Run Lines – For moneyline bets, the game must go at least seven full innings for the bet to have any action. The team must have at least a six-run lead for the game to be official.

Total Bases – A player must hit a single, double, triple or home run in order for a total bases market to have any action. This is different than total runs, which includes earned and unearned runs.

The legality of sports betting is a complex topic, and many states have debated whether or not to allow it. However, only two states currently offer the option. Nevada and Arizona have both regulated online and offline sports betting.