# What is Odds? Odds Explained.

Last Updated on October 10, 2023

Odds represent the likelihood of an event happening compared to it not happening. In the context of gambling or sports betting, odds are used to determine the amount a bookmaker will pay out on a winning bet, relative to the stake. There are different formats to express odds, such as fractional (e.g., 5/1), decimal (e.g., 6.00), and moneyline or American odds (e.g., +500 or -200).

## FAQs:

### How are odds calculated in sports betting?

Bookmakers calculate odds based on various factors including statistical analysis, current form, historical matchups, injuries, and other relevant considerations. Additionally, bookmakers adjust odds to ensure they maintain a profit margin, and they may further adjust odds in response to betting patterns to balance their books.

### What’s the difference between fractional, decimal, and moneyline odds?

• Fractional Odds: Commonly used in the UK, these represent the potential profit relative to the stake. For example, 5/1 means for every 1 unit staked, the profit will be 5 units.
• Decimal Odds: Popular in Europe, Canada, and Australia, these represent the total potential return, including the stake. A decimal odd of 6.00 means for every 1 unit staked, the total return will be 6 units.
• Moneyline/American Odds: Used primarily in the US, positive odds (e.g., +500) represent the potential profit on a 100 unit stake, while negative odds (e.g., -200) show how much one needs to stake to make a profit of 100 units.

### Do higher odds mean a less likely outcome?

Yes, in general, higher odds indicate that an outcome is deemed less likely by the bookmaker. For instance, a longshot in a race might have high odds, reflecting the view that it’s less probable for that selection to win.

### How do odds correlate with probability?

Odds can be converted to represent an implied probability. For example, fractional odds of 5/1 correspond to 1 in 6 chance, or roughly 16.67% probability. However, the implied probabilities derived from bookmaker odds typically sum to more than 100% because of the overround or vig, which is the bookmaker’s margin.

### Can odds change after a bet has been placed?

Generally, once a bet is placed, the odds at the time of the bet are locked in and won’t change for that particular wager. However, bookmakers can and do adjust the odds they offer for subsequent bets based on various factors, such as changes in information or betting patterns.

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### What is Multiple Bet? Multiple Bet Explained.

A Multiple Bet, often referred to as an accumulator or parlay, is a single wager that links together two or more individual wagers for a