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Practical guide

How to Read Sports Betting Odds

Odds tell you two things: how much you can win, and what chance the bookmaker gives the outcome. With a real example.

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What decimal odds mean

Decimal odds are your stake multiplier: at 2.50, a $10 bet returns $25 in total if it wins, or $15 profit. It's the format all three of our operators display.

The probability hidden in the odds

Divide 1 by the odds to get the implied probability: 1 ÷ 2.50 = 40%. The lower the odds, the more likely the bookmaker thinks the outcome is.

A real example: spotting the bookmaker's margin

On September 24, 2026, a Japan–Uruguay friendly was listed at Ice with these 1X2 odds: 1.74 (Japan), 3.70 (draw) and 4.40 (Uruguay).

Japan · 1.741 ÷ 1.74 = 57.5%
Draw · 3.701 ÷ 3.70 = 27.0%
Uruguay · 4.401 ÷ 4.40 = 22.7%
Total107.2%

The three outcomes add up to more than 100%: the extra, about 7%, is the bookmaker's margin. Comparing odds for the same match across operators means looking for the thinnest margin.

Other formats

American odds of +150 equal 2.50 in decimal; −200 equals 1.50. Fractional odds of 3/2 also equal 2.50. Our odds converter does the math for you.

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Frequently asked questions

How do I calculate my payout with decimal odds?

Multiply your stake by the odds. At 1.74, $20 returns $34.80 in total, or $14.80 profit.

Why do the probabilities add up to more than 100%?

Because the bookmaker builds its margin into the odds. In our Japan–Uruguay example, it's about 7%.

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