The first question you might be asking is: Why do odds differ between different online sportsbooks? While you should not bet on the same team with different odds, it’s possible that some events will have a greater impact on the betting odds than others. For example, a new coach or star player retiring could impact the odds more than another factor. But what is the actual reason for these differences? A bookmaker’s calculation of sports betting lines is based on a variety of factors, including the game’s current state and weather conditions.
Sportsbooks aren’t allowed to adjust their odds on every game. They are allowed to move them based on a number of factors. One of them is the sharps, which are those who place larger bets with a large bankroll. Fortunately, sportsbooks can recognize this behavior, and move the lines to discourage sharps from placing bets on the same side as these people.
To create more accurate betting lines, bookmakers use a combination of statistical and mathematicians’ insights to calculate odds for a sporting event. This method is known as “vigorish.” The vigorish is the percentage of the sportsbook’s profits that is deducted from the winnings. Newer, smaller betting houses may have higher vigs because their profit margin is smaller. Furthermore, new betting houses may post better odds to attract players and build their customer base.