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PAdmin 1 day ago
Sports betting odds tell you two things: the implied probability of an outcome happening and how much money you win if your bet is successful.
The three main odds formats used globally are Decimal (popular in Europe, LATAM, and Australia), Fractional (standard in the UK and Ireland), and American (used primarily in the US).
Comparison of Odds Formats
All three formats represent the exact same risk and payout they are simply formatted differently. Here is how a $100 bet looks across each format:
How Each Format Works
Decimal Odds (e.g., 2.50 or 1.80)
Where it’s used: LATAM, Europe, Australia, Canada.
How it works: The number represents the total payout (your original stake + net profit) for every $1 wagered.
Formula: TotalPayout=StakeDecimalOdds
Example: Betting $50 on odds of 1.80 returns 90total(40 net profit + $50 original stake). Anything above 2.00 is an underdog (pays out more than double your stake), while odds below 2.00 indicate a favorite.
Fractional Odds (e.g., 3/2 or 4/1)
Where it’s used: UK, Ireland, horse racing.
How it works: The fraction shows your net profit relative to your stake (Profit / Stake).
Formula: Profit=StakeNumeratorDenominator
Example: Odds of 3/2 (read as "3-to-2") mean for every $2 you bet, you win $3 in net profit. Betting $20 at 3/2 gives you $30 in profit, returning $50 total. An "evens" or 1:1 bet is represented as 1/1.
American / Moneyline Odds (e.g., +150 or -150)
Where it’s used: United States, US sportsbooks.
How it works: Based on baseline $100 figures using plus (+) and minus (-) symbols:
Plus (+) = Underdog: The number shows the net profit on a $100 bet. Odds of +150 mean a $100 bet wins $150 net profit.
Minus (-) = Favorite: The number shows how much you must wager to win $100 in net profit. Odds of -150 mean you must bet $150 to win $100 net profit.
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