Understanding Betting Odds

Welcome to the Sports Betting Odds section of The Sports Geek. If you are new to sports betting and don’t understand how to read betting odds (+150, -110, +2200, etc) we will lay it all out for you and help you learn how the betting odds work.

Sports Betting Odds Explained

Many people don’t know how to read or calculate sports betting odds, so below we have done our best on explaining how betting odds work. The most common type of sports betting odds used in North America are the American style odds which we explain below.

Betting odds simply indicate the likelihood of an event and the return you’d get if you did make a wager on the result. Betting odds may be displayed in three different formats at US sportsbooks and online and mobile sports betting platforms: American odds, fractional odds and decimal odds. Using Betting Odds to Calculate Probability 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%.

American Style Sports Betting Odds

Most online sportsbooks will list their odds in what is called “American Odds”. There are a couple different versions of sports betting odds, but these American Odds are the most common odds used. Reading and understanding sports betting odds can bet a little confusing to beginners, so we have provided an example below using two NFL football teams:

American Odds

• Matchup Odds
• New England Patriots +120
• Pittsburgh Steelers -140

The number shown in the bracket represents the odds. The American Odds have two components to them, the first being the positive or negative sign, and the second being the number that follows the sign.

The sign in front of the number indicates whether placing a wager on that outcome will pay out more money then you have wagered or less money then you have wagered. If the odd is negative (-) it means that outcome is more likely to happen and placing a bet on that outcome would payout less than the amount you wagered, while a positive (+) odd shows that the outcome is less likely to happen and it would pay out more than the amount you wagered.

The next step is figuring out exactly how much the bet pays out, which is where the numbers in the odds come into play.

A listed odd with a – sign in front of it, such as the -140 in our example above, shows us how much money you would need to wager in order to win $100. So using the -140, this would show us that you would need to bet $140 in order to win $100 in profits. You can easily substitute the $100 bet for a $10 bet by moving the decimal place over one spot, showing us that you would need to wager $14 in order to win $10 in profits.

Examples:

A listed odd with a + sign in front of it, such as the +120 in our example above, shows us how much money you would win on a $100 bet. Using the +120 odds, it shows us that a $100 bet on that outcome would pay out $120 in profits. Again this can easily be converted into smaller or larger size bets. A $10 bet on +120 odds would pay out $12 in profits.

Examples:

Below is an example of NFL betting odds taken from an online betting site.

In this example you can see Los Angeles is listed at +130 ($100 bet pays $130 plus of course your original wager back) and New England is listed at -150 ($150 bet pays $100).

The great thing about betting online is that the online sportsbooks will do the calculations for you before you place your bet. You can click on the outcome or team you would like to bet on, and then input the amount you wish to wager and it will show you your potential pay out before you confirm your bet.

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Decimal Style Sports Betting Odds

Decimal style odds are used mostly in Europe, and are pretty easy to understand. To calculate the decimal style odds all you will need to do is simply multiply the amount you wish to wager by the decimal odds shown and you will get your payout. For example it may look something like this:

If you wanted to place a $10 wager on the USA at 2.40 you would simply need to multiply your $10 wager by the 2.40 odds (10 x 2.40) to find out that the payout is $24. It is important to realize that with decimal style odds it includes the amount you wagered, so to find out profits you would need to subtract your wager ($24 – $10) to find out your potential payout is $14 in profits.

If you wanted to place a $10 wager on Brazil you would again just multiply $10 x 1.55 to find out that you would win $15.50 total or $5.50 in profits.

Decimal style betting odds are very simple to understand, but you won’t see them displayed in many North American sportsbooks. With that said, most online betting sites will allow you to chose the style of betting odds you want displayed, with American odds set as the default.

There are two ways odds – or prices – are displayed at racecourses in Britain: the traditional fractional system or the more recently introduced decimal system.

Fractional odds:

These are usually displayed in this format: 4/1.

In spoken form this is “Four-to-one” and sometimes this can be written as: 4-1.

Odds are just maths. To illustrate some examples, let’s call each number a unit. So:

4/1: For every 1 unit you stake, you will receive 4 units if you win (plus your stake).
7/2: For every 2 units you stake, you will receive 7 units if you win (plus your stake).
9/4: For every 4 units you stake, you will receive 9 units if you win (plus your stake).

If you see fractional odds the other way round – such as 1/4 – this is called odds-on and means the horse in question is a hot favourite to win the race.

In spoken form this is “Four-to-one on”.

1/4: For every 4 units you stake, you will receive 1 unit if you win (plus your stake).
1/2: For every 2 units you stake, you will receive 1 unit if you win (plus your stake).

Sometimes you will see Evens or EVS displayed. This is the equivalent of a 1/1 fraction. Again it means the horse in question is expected to win the race.

EVS: For every 1 unit you stake, you will receive 1 unit if you win (plus your stake).

Decimal odds:

These are usually displayed in this format: 5.00.

5.00: Simply multiply this number by your stake to calculate your total potential returns if you are placing a win bet. Unlike fractional odds, your stake is already factored into this price i.e. this is the equivalent of 4/1 plus the 1 unit you stake.

Favourites:

Each race has a favourite. This is the horse most likely to win, which is reflected in having the shortest price displayed with betting operators.

You will see an F alongside the horse’s odds when they are the favourite. If more than one horse has the same odds of winning according to the betting market, this will be displayed as JF, meaning joint-favourite.

Understanding Betting Odds Football

What about odds when betting each-way?

Racecourse bookmakers operating at Jockey Club Racecourses must meet (or exceed in the customer’s favour) a standard set of terms if you decide to place an each-way bet.

Sports Odds Explained

You will appreciate it is not affordable for bookmakers to pay out on all four places in a four runner race (!) so these agreed terms concerning place part of your each-way bet have to vary dependent on the number of runners and type of race. These are:

Understanding Betting Odds Uk

• Races with 3 or runners: win bets only, unless the bookmaker chooses to offer 1/5 (one fifth) of the stated odds for finishing 1st or 2nd
• Races with 3 or 4 runners: 1/5 (one fifth) of the stated odds for finishing 1st or 2nd
• Races with 5 to 7 runners (inclusive): 1/4 (one quarter) odds for finishing 1st or 2nd
• Races with 8 or more runners: 1/5 odds for finishing 1st, 2nd or 3rd
• Handicap races with 12 to 15 runners (inclusive): 1/4 odds for finishing 1st, 2nd or 3rd
• Handicap races with 16 to 21 runners (inclusive): 1/5 odds for finishing 1st, 2nd, 3rd or 4th
• Handicap races with 22 or more runners: 1/4 odds for finishing 1st, 2nd, 3rd and 4th