Betting Odds Explained

Learn how betting odds work and how to read the different formats with our guide, from American to decimal odds.

For people who have never wagered before, understanding betting odds is a fundamental first step. This information is essential because it makes it possible to assess the likelihood of an event occurring and the possible profits from a wager. This explanation of betting odds seeks to demystify the process, even though the actual presentation (in real life) could seem complex.

Written by Shivam Bhateja
Verified by BettingGuide team
Last updated 13/11/2024
Betting Odds Beginners Guide

Guide about betting odds and different formats available in India.

What Are Betting Odds?

In sports betting, numbers are used to express the probability of any specific match outcome. These numbers are called betting odds. Most players also leverage betting odds to determine the payouts if you win a bet. The three main ways to express betting odds are moneyline (American), decimal, and fractional.

To assess the probability of particular events and make wise wagers, one must have a thorough understanding of various forms. Additionally, different sportsbooks may use different formats. So, the bettor needs to be familiar with each one in order to understand them best.

How Betting Odds Work

Whichever kind of odds you choose, their foundation is probability. Therefore, the odds that you see on the betting website represent the likelihood that the wager will win in their estimation. The betting site will first calculate the likelihood as a percentage and then emphasize this as a price using an odds converter.

The odds are lower when the likelihood is higher. The odds are higher when the likelihood is lower. Now, let's take an example where we wish to wager on the NFL season and select the AFC East Division winner. The odds for this market are shown in the picture below.

betting odds guide 1

Now make the most of these odds to find out the probability for every single outcome:

Team Odds Probability
Cowboys +150 40.00%
Giants +10000 0.99%
Eagles -185 64.94%
Commanders +2000 4.76%

So, it is important to consider them as a probability in addition to the chances when discussing how betting odds operate. The above table shows you how the probability determines the odds by highlighting each team's likelihood of winning the AFC East.

Decimal Betting Odds

Decimal betting odds are the default format for most online betting sites in India, and they are also our recommended format. The decimal odds represent the potential returns of the bet including the stake. Multiply the decimal odds by the amount you wish to bet to work out your potential return, and minus your stake to calculate the profit.

(Decimal odds x stake = returns - stake = profit)

Example: 2.50 x 100 = 350 - 100 = 250 profit

  • How to Read Decimal Odds

    Decimal odds are expressed as one figure, which represents the winnings on a $1 wager that a winning wager would receive. A winning wager would earn $5 in profit in addition to the initial $1 wager if the odds were set as 6. A favorite bet is anything between 1 and 2, while 2 is an even money wager.

    When the fractions employed in fractional odds grow a little unsightly, these are more frequently used outside of the US. For instance, American odds of -115 are frequently seen; yet, in fractional odds, it translates to 20–23. Perform a quick calculation of the return on a $10 wager with odds of 20–23.

    With 1.87 as the decimal odds, the calculation for this $10 wager would be significantly simpler. To obtain the return that would include the initial bet, multiply the odds by the stake. Much simpler, isn't that right? $18.70 would be the return. In this instance, decimal odds may be preferable.

    For every unit wagered, for instance, you would receive a return of four units if your odds were 4.0. You must keep in mind that when looking at decimal odds, this represents the entire return, including the initial stake. This would represent a breakdown of one unit from the initial capital and three units of profit.

    The example above is from the forthcoming Premier League wagering on Manchester City vs. Liverpool. Here, it is clear that the odds for a Liverpool win is 5.00. Moreover, the odds here for a Man City win is 1.61, while the odds for a tie is 4.20.

    It is simple to calculate the return in decimal notation if you were to wager $10 on each. These would be, in order, $16.10, $50, and $42.

Fractional Betting Odds

Fractional betting odds are common in English speaking countries, with the United Kingdom using fractional odds as the default setting for most gambling sites. There is a simple way of understanding fractional betting odds.

Example: 3/1 = How much you win/how much you stake

For every 100 rupees you stake, you will win 300 rupees, simple as that.

1/5 = Every 500 rupees you stake, you will win 100 rupees.

  • How to Read Fractional Odds

    In many American sportsbooks, decimal and fractional odds are available; nevertheless, they are more prevalent outside of the country. These both follow comparable ideas. Fractional odds, as the name suggests, come in fractions, such as 3/1 or 7/4.

    Gains can be shown by multiplying a wager amount by the fraction. You will profit $30 plus get your $10 back if you bet $10 at 3-1 odds. $17.50 plus the initial $10 would be won by wagering $10 at 7-4 odds. Divide the $10 by the four denominators (now referred to as the numerator), and then multiply the result by seven. You then get 17.50 when you split 70 by 4.

    Favorite wagers, like 1-2 or 2-5, will have a denominator that is more than the numerator. In underdog wagers, like in the situations mentioned above, the numerator will be greater than the denominator. The most popular application of fractional odds in America is in futures betting, where almost each and every odd has a denominator of 1, which simplifies their interpretation.

American Betting Odds

American, or Moneyline odds, are shown as positive (+) or negative (-) numbers. The positive numbers show how much you might profit if you bet 100, and the negative number shows what you must stake to win 100. We do not recommend using the American style betting odds, but if you find it easier, most online betting sites offer the Moneyline odds format as an option.

  • How to Read AOdds

    The American chances are shown as a number, either positive or negative. The amount of money you will have if you wager $100 is shown by the positive number. The amount of money you have to risk in order to turn a $100 profit is the drawback. Some marketplaces have both positive and negative odds.

    The underdogs are the favorites in this situation and have a higher chance of success. The lowest number is the favorite, and it goes up from there with American betting odds and markets where there are online positive odds.

    The Chicago Bulls and Charlotte Hornets will play in an NBA game soon, and that is the example from the game above. For spread betting and moneyline betting, there are two different sets of odds.

    As you can see, a +/- 10.5 line is priced at -105 for the spread. To turn a profit of $100, you must bet $105, according to this calculation. The moneyline bets are +375 for the Hornets to win ($375 in profit for every $100 placed) and -500 for the Bulls to win the championship hands-down ($500 bet required to profit $100).

    It's important to note that these bets don't require you to stake $100 or more, but it's the simplest approach to settle disputes in the American format. Your returns would be $37.50 if you wagered just $10 on the Hornets to win at +375. Those odds against the favorites could work out.

Odds Converter

Calculating Implied Probability

Odds reflect the implied probability of an event occurring, and it is important to know how to change the odds into a percentage to work out if there is value in the bet. We recommend using decimal odds, as you just need to divide 100 by the decimal odds to work out the percentage.

Example: 100/2.50 = 40%

Let's say, two football teams have seen both teams score in a combined average of 70% of their games.

If both teams to score was set at 2.50 (40%), there would be value in the odds offered compared to the 70% average.

Bet Calculator

How to Use Betting Odds

To maximize your potential earnings while sports betting, you must choose the greatest betting odds. This is a thorough guide that will show you where to look for the best game lines for any forthcoming games:

  • Compare Betting Lines: Do not restrict yourself to just one sportsbook when comparing them all. To spot trends and determine the best value for your bets, compare the sports betting lines offered by several online sportsbooks.

  • Follow the Movement of the Line: Factors like betting activity and team news can cause odds to change. See how the lines move carefully to identify good odds before they change.

  • Think About Different Betting Markets: Various online sportsbooks might do a great job of providing odds that are competitive for particular sports or betting markets. To discover the greatest odds for the sports and bet kinds you choose, check out a variety of platforms.

  • Look for Bonuses and Promotions: A few online sportsbooks provide bonuses, improved odds, or promotions that might increase your potential earnings. Make sure you utilize these offerings sensibly. Be aware that in order to benefit from a particular offering, you might need to enter a promo code or bonus code.

  • Place Your Bet at the Appropriate Time: As a game or event draws closer, odds can alter, particularly for well-known contests. It is possible to get better chances by placing your bet early or at the appropriate time.

  • Consider Betting Exchanges: By letting you wager against other people as opposed to the sportsbook directly, betting exchanges can offer a different approach to discovering good odds.

  • Keep Up with Professional Analysis: Keep abreast on professional analysis and forecasts, which can provide insights into prospective movements in odds and value bets.

Common Mistakes to Avoid

It's essential to comprehend betting odds in order to make wise wagers. However, a number of myths can result in expensive errors.

Misinterpreting the link between probabilities and risk is one common mistake. Lower odds, which are frequently linked to favorites, suggest a better chance of winning but do not ensure it. On the other hand, greater odds on the underdogs indicate a less likely victory rather than a guarantee of defeat.

Successful betting depends on value identification more than just picking winners. Value bets appear when the indicated probability of victory on the odds is less than the potential reward. Avoid being seduced by short odds on something that seems certain; instead, look for situations where the odds provide a return larger than the actual chance of the event occurring.

Betting Odds FAQs

The payoff is represented by the plus and minus in American odds. A positive figure (such as +200) in the odds indicates how much you earn for every $100 invested. The amount you must bet in order to turn a profit of that amount is indicated by any odds with a negative number (such as -200).

In essence, betting odds are the probability that the bookmaker has specified. They represent the likelihood that the pick will win as well as the potential returns on winning wagers placed at those odds.

Before the game begins, the chances are known as fixed betting odds. This is typical of products like coupons or parlay cards, where the odds rise according to the number of options you select as opposed to the odds per selection.

I am an avid reader and passionate writer. I have been working in the content writing industry for the past 10 years now and I have written hundreds of content pieces that cover the world of gambling. With a passion for all things related to casinos, sports betting, and online gaming, I bring a unique perspective and in-depth knowledge to my pieces. From strategy guides to reviews and analysis, my goal is to provide readers with the information they need to make informed decisions and enhance their experience. Let's win big together!