Official betting is the term used to describe sports bets that are made legally in the state where the game is being played. This includes sports betting at commercial casinos, as well as online gambling sites that offer wagering on sporting events.

Some of these bets are based on statistical totals for a single game, while others are based on first to X-based props. In either case, these wagers don’t have action until the event has occurred.

Moneylines: Bets on moneylines (also called -120 or -110) become official once the game has gone five innings, or the home team leads after 4.5 innings. However, the odds may change during the game and may not be official until the teams have completed nine or 8.5 innings for full-game moneylines.

Over/Unders: These wagers are based on the total number of runs scored in a game. In addition, these wagers are not official until the teams have reached the stated total.

Player Props: These wagers are based on statistics for individual players and require that the player be in the starting lineup for action to occur. The player must also reach at least one base on a hit.

Hitting an “exacta” entails picking the first two finishers in a race in correct order; a “quinella” calls for the first two finishers in either order; and a “trifecta” or “trifecta box” involves the first three or four finishers in exacta order.

Oregon became the only state outside of Nevada to legalize sports betting when the Professional and Amateur Sports Protection Act of 1992 (PASPA) was struck down by the Supreme Court in 2018. In addition, it was the only state other than Nevada that kept its sports lottery system, Sports Action, after PASPA’s ban.