Against the Spread (ATS) is a popular betting term used in sports betting that refers to a bet placed not on the outcome of the game, but on the differential in points between the teams. This form of betting is popular in sports where there are high scoring games such as basketball and American football. The aim of this glossary article is to provide a comprehensive understanding of the concept of Against the Spread betting, its origins, how it works, its advantages and disadvantages, and some strategies to use when betting Against the Spread.
The term ‘Against the Spread’ can be somewhat misleading for those new to sports betting, as it might suggest betting against a certain team. In reality, ATS betting is about betting against the spread set by the bookmakers, not against a specific team. This type of betting adds an extra layer of excitement and complexity to sports betting, making it a favorite among many sports bettors.
Origins of Against the Spread Betting
The concept of spread betting originated in the United States and has been a part of sports betting since the early 20th century. It was introduced to level the playing field between two unevenly matched teams. By creating a point spread, bookmakers aim to attract bets on both teams, ensuring a balanced book.

Today, spread betting is a fundamental part of sports betting in the US and has gained popularity in other parts of the world. It is commonly used in high-scoring sports such as basketball and American football, but it can also be found in other sports like baseball and hockey.
The Concept of the Point Spread
The point spread is the cornerstone of Against the Spread betting. It is the predicted margin of victory for the favored team, set by the bookmakers. For example, if the point spread is 7.5 points, the favored team must win by more than 7.5 points for a bet on them to win. Conversely, the underdog team could lose by less than 7.5 points or win the game outright for a bet on them to win.
The point spread is designed to create an equal playing field in the betting world. Without it, bettors would heavily favor the stronger team, making the betting market unbalanced. The point spread encourages bets on both teams, ensuring a balanced market.
Understanding the Betting Lines
In Against the Spread betting, the betting lines or odds are expressed as a plus (+) or minus (-) number. The team with the minus number is the favorite, and the number represents how much they need to win by. The team with the plus number is the underdog, and the number represents how much they can lose by.
For example, if Team A is -7.5 and Team B is +7.5, Team A is the favorite and must win by more than 7.5 points for a bet on them to win. Team B is the underdog and can lose by up to 7.5 points or win the game for a bet on them to win.
Advantages of Against the Spread Betting
One of the main advantages of Against the Spread betting is that it levels the playing field between two unevenly matched teams. This makes the betting market more balanced and attractive to bettors, as it offers the possibility of winning a bet even if the team they bet on loses the game.

Another advantage of ATS betting is that it adds an extra layer of excitement and complexity to sports betting. Bettors need to consider not just who will win the game, but by how much they will win. This requires a deeper understanding of the teams and the game, making the betting experience more engaging and rewarding.
Opportunities for Profit
Against the Spread betting can provide profitable opportunities for knowledgeable bettors. By understanding the teams, the players, and the dynamics of the game, bettors can make informed predictions about the likely margin of victory. This can lead to profitable betting opportunities.
Moreover, because the point spread is designed to balance the betting market, the odds for both teams are usually close to even. This means that bettors can potentially make a substantial profit from a successful bet.
Increased Excitement
ATS betting can make watching sports more exciting. With a bet placed on the point spread, every point in the game can make a difference, adding an extra layer of suspense and excitement. This can enhance the enjoyment of watching sports, making it a popular choice among many sports bettors.
Furthermore, ATS betting can make even the most unevenly matched games interesting to watch. Even if the outcome of the game is predictable, the point spread keeps the suspense alive, as it’s not just about who wins, but by how much they win.
Disadvantages of Against the Spread Betting
While Against the Spread betting has its advantages, it also has some disadvantages. One of the main disadvantages is that it can be more complex and challenging than other types of betting. Bettors need to understand not just the teams and the game, but also the concept of the point spread and how it affects the outcome of their bets.
Another disadvantage of ATS betting is that the outcome of the bet can be influenced by factors beyond the control of the teams, such as injuries, penalties, and referees’ decisions. This can add an element of unpredictability to the betting outcome.
Increased Complexity
One of the main challenges of Against the Spread betting is its complexity. Unlike straight-up betting where bettors simply pick the winner, ATS betting requires bettors to predict the margin of victory. This requires a deeper understanding of the teams, the players, and the dynamics of the game.
Moreover, the point spread can change before the game starts, based on factors such as injuries, weather conditions, and betting trends. Bettors need to keep track of these changes and adjust their betting strategy accordingly, adding another layer of complexity to ATS betting.
Unpredictability of the Outcome
Another challenge of ATS betting is the unpredictability of the outcome. Even with a deep understanding of the teams and the game, the outcome of the bet can be influenced by unpredictable factors such as injuries, penalties, and referees’ decisions.
For example, a key player getting injured during the game can drastically change the dynamics of the game and affect the outcome of the bet. Similarly, a controversial decision by the referee can swing the game in favor of one team, affecting the point spread and the betting outcome.
Strategies for Against the Spread Betting
Despite the challenges, there are strategies that can increase the chances of success in Against the Spread betting. One of the key strategies is to thoroughly research the teams, the players, and the game. Understanding the strengths and weaknesses of the teams, the form of the players, and the dynamics of the game can help bettors make informed predictions about the likely margin of victory.
Another strategy is to keep track of the changes in the point spread and adjust the betting strategy accordingly. Factors such as injuries, weather conditions, and betting trends can affect the point spread, and bettors need to be aware of these changes to make informed betting decisions.
Research and Analysis
Thorough research and analysis are crucial for successful Against the Spread betting. Bettors need to understand the strengths and weaknesses of the teams, the form of the players, and the dynamics of the game. This includes studying the teams’ previous performances, their head-to-head records, the players’ form, and other relevant statistics.
Moreover, bettors need to consider the context of the game. Factors such as home advantage, injuries, and motivation can affect the performance of the teams and the outcome of the game. By considering all these factors, bettors can make informed predictions about the likely margin of victory.
Monitoring the Point Spread
Keeping track of the changes in the point spread is another important strategy for ATS betting. The point spread can change before the game starts, based on factors such as injuries, weather conditions, and betting trends. Bettors need to monitor these changes and adjust their betting strategy accordingly.
For example, if a key player is injured before the game, the point spread might shift in favor of the other team. In such a case, bettors might need to reconsider their bet or adjust the amount they are willing to wager. By staying informed about the changes in the point spread, bettors can make more informed betting decisions.
Conclusion
Against the Spread betting is a popular form of sports betting that adds an extra layer of excitement and complexity to the betting experience. While it can be more challenging than other types of betting, it can also be more rewarding for those who understand the concept and use effective betting strategies.
Whether you are a seasoned bettor or a beginner, understanding the concept of Against the Spread betting can enhance your sports betting experience. By understanding the origins, how it works, its advantages and disadvantages, and some strategies to use, you can make more informed betting decisions and potentially increase your chances of success.