SIGN UP LOG IN
 

American Odds Review

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z OTHER

Betting odds are a numerical expression of an event happening, typically in a sporting event or horse race. The American odds represent the likelihood of something happening and something not happening. The most basic betting market is for the toss of a coin in which both outcomes have an even chance of happening and not happening.

There are six different odds formats, which are mainly used in countries of their origin. The methods by which odds are expressed are as follows:

American Odds show the winnings from a €/$/£100 bet or the stake that is required to win €/$/£100. These odds are the equivalent of odds against and odds-on in fractional odds. Even money is shown as +100 because a €/$/£100 bet returns €/$/£200 which is a profit of €/$/£100 plus the stake.

Odds Conversion

The art of bookmaking is to create a market that attracts business while having a built-in profit margin for the bookmaker. A market is said to be over round when the odds represent a book of over 100%. There is no direct calculation for the American Odds profit margin in a three-way market. An odds conversion table shows the odds expressed in American and fractional formats.

 

Outcome 1+1001/1100 divided by (1 + 1) / 1)) = 50.00
Outcome 2+2002/1100 divided by (2 + 1) / 1)) = 33.00
Outcome 3+3003/1100 divided by (3 + 1) / 1)) = 25.00

TOTAL: 108.00
This book has an over round or theoretical profit margin of 8.00%.

Conversion Table

Here is an odds conversion table for odds-on, Evens and odds-against.

American-200+100+200
Decimal1.502.003.00
Fractional1/2Evens2/1
Hong Kong0.50001.00002.0000
Indonesion-2.00001.00002.0000
Malay0.50001.0000-0.5000

Examples

Here are examples of American Odds for three of the most popular US sports and the most basic betting market, which is the win single:

American Football

Home Win (including Overtime)+1506/4100 divided by (6 + 4) / 4)) = 40.00
Away Win (including Overtime)-162.58/13100 divided by (8 + 13) / 13)) = 61.90

TOTAL: 101.90.

This book is over round or has a profit margin of 1.90%.

Tennis

Player 1+1001/1100 divided by (1 + 1) / 1)) = 50.00
Player 2-1254/5100 divided by (4 + 5) / 5)) = 55.56

TOTAL: 105.56.

This book is over round or has a profit margin of 5.56%.

Horse Racing

Horse 1+2002/1100 divided by (2 + 1) / 1)) = 33.33
Horse 2+4004/1100 divided by (4 + 1) / 1)) = 20.00
Horse 3+33010/3100 divided by (10 + 3) / 3)) = 23.09
Horse 4+8008/1100 divided by (8 + 1) / 1)) = 11.11
Horse 5+75015/2100 divided by (15 + 2) / 2)) = 11.76
Horse 6+9009/1100 divided by (9 + 1) / 1)) = 10.00

TOTAL: 109.30.

This book is over round or has a profit margin of 9.30%.

The same calculation applies regardless of the total number of potential outcomes. As a rough guide, a typical betting market will be compiled with a profit margin of about 1.5% to 2% per runner or possible outcome. Profit margins tend to be smaller in US sports using American Odds.


MOST POPULAR ONLINE CASINO & SPORTSBOOK WIKI TERMS

Random Logic

Random Logic is a popular company in their casino gaming industry. This company is owned by a well-known…

Platipus Gaming

Platipus is an extremely creative and skilled online software developer that creates the kind of slots that players…

HollywoodTV

With your busy schedule at work and other daily tasks, you deserve to relax and unwind. Furthermore, you…

SpadeGaming

SpadeGaming has been around since 2007. They make a positive contribution to the world of online gaming. Since…

GW Games

Already for a while before their official launch in 2015, this UK based content developer for the iGaming…

Apollo Games

Apollo Games is a specialist in casino gaming development including the design and the built slot machines. Apollo…

Malay Odds

Betting odds are a numerical expression of an event happening, typically in a sporting event or horse race.…

Picture Cards

What are the Picture Cards ? Twelve picture cards (up to 14 including the jokers) are contained in…

Mybetting Deals Tools

Surebet by BetBurger

Surebet by BetBurger

BetBurger is a service focusing on arbitrage bets, also known as sure bets. It turns sports betting into an investment.

Matched Betting by OddsMonkey

OddsMonkey

OddsMonkey offers matched betting services with features to enhance your profits with the best betting offers.

Live Sport Results and Statistics

Live Scores

Always keep ahead of the sports betting game with our real time results and statistics!

2000+ Free Slots

Play the best online slots and your favourites from the biggest developers for free right here!