Explain Vegas Odds

• Betting odds tell you how likely an event is to happen
• They also tell you how much money you will win
• However, at first, they may seem confusing and complex
• Our comprehensive guide takes you step-by-step to explain them

The growth of betting and odds compiling. By the 1950s the big firms that covered the length and breadth of the country betting on horses and greyhounds were already employing odds-makers to help them compile what was known as the “tissue” for each race. This was effectively the first show of prices. When betting on the favorite, you take less risk, and thus earn less. When betting on a favorite, the moneyline is the amount of money you need to spend to make $100 profit. In the previous example, in order to make $100 of profit betting for the Cowboys, you would need to spend $135. Like positive odds, you earn back your bet when winning. Betting Odds Change With Action. Some sports betting experts suggest that you shop different online sportsbooks for lines and odds and specific events in order to find a small edge whenever placing bets on games. Betting odds are traditionally formulated by the odds maker at the specific sports book. Balancing the Book: Betting Lines Explained Because bookies make their money from the vig, they want to encourage equal numbers of people to bet on each side of a game. From our example, they want the same number of people to bet the Eagles and the Bears.

If you’re new to betting, one of the first things you should do is learn how betting odds work. It’s critically important because it allows you to understand how likely an event is to happen, and what your potential winnings will be. At first, it may appear confusing, however, read our guide and let us explain it to you.

In gambling, odds represent the ratio between the amounts staked by parties to a wager or bet. Thus, odds of 3 to 1 mean the first party (the bookmaker) stakes three times the amount staked by the second party (the bettor).

What is Probability?

The most basic level, betting provides you with the ability to predict the outcome of a certain event, and if your prediction is correct, you will win money. For any given event, there are a certain number of outcomes. Take rolling a dice for instance. If someone rolls a dice, there are six possible outcomes. Therefore, if you bet that the person rolls a ‘one’, there is a 16.67% chance that will happen. What betting odds merely do is present how likely the event is to happen. Bookies most frequently in the UK do this as a fraction, i.e. 4/7, whilst the vast majority also offer the ability to view them as decimals. Again, let us talk you through them. All will become clear.

Using Betting Odds to Calculate Probability

Whenever you see two numbers separated by a trailing slash, i.e. 10/1, this is known as fractional odds. From this, you can calculate how likely a given event is to happen with a calculation. For ease of explanation, let’s replace the numbers with letters i.e. 4/1 becomes A/B. Here is the calculation: Probability (%) = B / (A+B).

• 9/1 can be calculated as 1 / (9 + 1) = 0.10– There is a 10% chance that the event will happen.
• 4/1 can be calculated as 1 / (4 + 1) = 0.20 – There is a 20% chance that the event will happen.
• 1/1 can be calculated as 1 / (1 + 1) = 0.50 – There is a 50% chance that the event will happen.
• 1/4 can be calculated as 4 / (4 + 1) = 0.80 – There is a 80% chance that the event will happen.

Hooray! We’re making progress. Given a fraction, we can now tell how likely (the probability) what we’re going to bet on will happen. Now let’s figure out how much money can be won using betting odds.

Using Betting Odds to Calculate Winnings

Betting odds allow you to calculate how much money you will win if you make a bet. Let’s use the same examples as before, with the same replacement of numbers for letters, i.e. 4/1 becomes A/B. Quite simply, for every value of B that you bet, you will win A, plus the return of your stake.

• 9/1 for every £1 you bet, you will win £9.
• 4/1 for every £1 you bet, you will win £4.
• 1/1 for every £1 you bet, you will win £1.
• 1/4 for every £4 you bet, you will win £1.

What About Decimals?

Decimals are far more common on exchanges, such as Betfair, but all leading betting sites do give you the option to view betting odds in this format. They are an alternative to seeing betting odds in the fraction format, and in our opinion, are easier to work out. Here is the calculation: winnings = (odds * stake) – stake. Let’s illustrate it with some examples

• 9.0 can be calculated as (9.0 * £10 stake) – £10 stake = £80 winnings.
• 4.0 can be calculated as (4.0 * £10 stake) – £10 stake = £30 winnings.
• 2.5 can be calculated as (2.5 * £10 stake) – £10 stake = £15 winnings.
• 1.25 can be calculated as (1.25 * £10 stake) – £10 stake =£2.50 winnings.

You can use our bet calculator to help you calculate winnings.
USE BET CALCULATOR

Decimal Odds Versus Fractional Odds

In truth, one isn’t better than the other but there is certainly a trend emerging towards decimal odds. Historically fractional odds were used in the UK, especially on racetracks and on the high street. There are two key differences. Generally, decimal odds are easier to understand. Based on this, there has a movement to attract more people to horse racing by making it more accessible to the average punter. Ten years ago, if you were going to Cheltenham, all the odds would be displayed as fractional odds. Now, they’re largely all in decimals. Don’t hesitate to check out our exclusive Premier League Betting Offers !

The second difference between the formats is that fractional odds only represent winnings, and do not include the returned stake compared to decimals which do include the stake. The transition from fractional odds to decimals largely kicked off with the growing popularity of the betting exchanges such Betfair. For odds to change slightly, it’s really difficult to marginally increase or decrease the probability without creating large fractions which are hard to compute for the punter.

Use Our Tool to Convert Betting Odds Into Your Favourite Format

Our odds converter toolwill allow you see odds in whatever format you like . Not only that, but it’ll tell you how likely the selection is to win!

In Summary

Betting Odds Explained +100 100

Betting odds represent the probability of an event to happen and therefore enable you to work out how much money you will win if your bet wins. As an example, with odds of 4/1, for every £1 you bet, you will win £4. There is a 20% chance of this happening, calculated by 1 / (4 + 1) = 0.20.

Next steps

That’s it! Hopefully, that clears up betting odds. You should now have the knowledge to read betting odds, understand how likely it is to happen, and how much you stand to win.

Vegas Betting Odds Explained

• Found this article useful? We have loads more similar ones in our learning section. Here are some popular ones;
• Our homepage lists all available betting sites for new customers.