How Sportsbooks Use Biases to Increase Profits


A sportsbook can take advantage of these biases to make more money. For example, many bettors like to bet on favorites or “ride the coattails” of perennial winners. Using these biases can help the sportsbook shade lines, which can increase profit margins. Here are some examples.

Off the Board in a sportsbook

When a sportsbook says “Off the Board,” it means the game line is not available. When this happens, the bookmaker will refuse to accept your bet. The sportsbook will have its own rules for pulling a game. Here are some of the reasons why a game is off the board.

If a team or player is out due to injury, bookmakers may take the game off the board and re-list it at a later date. This occurs most often in football games, which are more susceptible to injuries. A key player’s absence will drastically affect the odds.

Moneyline odds

Moneyline bets are a great way to start in sports betting. They’re very similar to straight up bets, but they come with a lower vig. They also let you bet on the ability of a team to win instead of the point spread. This gives you a better idea of a team’s talent. In addition, you can try parlay bets, which combine multiple individual bets into a single wager. These bets require a bit more skill than straight bets, but can be very lucrative for the right gambler.

The odds are based on various factors, including previous game outcomes and key betting trends. A good understanding of moneyline odds will help you make the most informed decisions, and avoid mistakes.


Point-spreads at sportsbooks are important to understand, especially if you’re new to sports betting. These betting odds are calculated based on human and statistical input. They generally give home teams a two or three-point edge, but this can vary. This volatility is good news, because it can lead to good betting opportunities.

Generally, point-spreads are paid at -110, but sportsbooks can change the payout odds. Point-spreads that are equal in value are usually paid at -110. This means that if you bet $100 on one team and it wins, you have to risk $110 to win $100. This extra risk is called the vig, and it’s how sportsbooks make their money.

Alternate Lines

Alternate Lines in a sportsbook refer to betting markets that have different odds on the total. For example, if the over/under was set at 7 runs, the odds on under would be -240. If the over/under were set at 8.5 runs, the odds on under would be -270 and so on. By following this basic concept, bettors can profitably use alternate lines.

Another type of betting markets are Futures markets, which can be season-long and offer great value on longshots. These markets can give bettors clues on what teams are likely to perform in their upcoming games. However, using these markets correctly will require some research and practice.

Betting exchanges

Betting exchanges for sportsbooks operate much like traditional sportsbooks, but with fewer overheads. For starters, they don’t have in-house odds-making teams and are often more cost-effective. However, they do charge a commission on winning bets, which is typically between two and three percent of the amount you bet. Some of the exchanges also offer no-commission bonuses for a limited time or up to a specified amount. Before making any bets, read the fine print and make sure you’re aware of any restrictions.

When it comes to depositing money, sportsbooks accept a variety of different payment methods. Some accept credit cards, debit cards, and cash, while others accept online banking apps. Some even offer e-checks, which are similar to paper checks but process much faster.