What is Odds Format?
There are various odds formats which come from different international conventions. For example, a coin toss has 50% probability for heads, but there are three common ways to represent the odds of the event.
In Europe and Australia, a decimal is used - 2.00
In the United Kingdom, fractions are used - Evens, 1/1 or even money.
In the United States, +/-100 is used. A (+) indicates the amount that would be won for every $100 bet placed, whereas a (-) indicates how much must be bet to win $100.