The odds also show bettors at a glance which team is the favorite (more likely to win) and which is the underdog (more likely to lose).

Whatever the format, sports betting odds tell bettors how much they stand to win on a bet relative to the size of their wager. Example: 10/11 indicates bettors must wager $110 for every $100 in potential winnings.

Fractional Odds: Used at some international betting sites, using fractional notations.

Example: 1.91 indicates bettors must wager $110 for every $100 in potential winnings.

Decimal Odds: The default at most international betting sites, using decimal notations.

Example: -110 indicates bettors must wager $110 for every $100 in potential winnings.

American Odds: The default at all US sports betting sites, using three-digit numbers.

That’s three different odds formats that most bettors should be aware of: Sportsbooks in other parts of the world display the odds in one of two alternative formats, which US bettors may see occasionally when researching odds and strategies, particularly for sports like soccer and cricket. US sportsbooks display odds and sports betting lines in the American format by default, which most fans will recognize as the positive and negative three-digit numbers that describe favorites and underdogs (see the dropdown explainers below). Real-Time Legal Sportsbook Odds Comparison.

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