Understanding Soccer Betting Odds and Probability

Before placing a soccer bet, it’s essential to understand how betting odds work and how sportsbooks build their profit into the market. Whether you’re betting on the Premier League, Champions League, MLS, La Liga, or international tournaments, understanding odds is the foundation of smart betting.

Today, soccer bettors can choose from hundreds of online sportsbooks, compare odds across multiple operators, and even place wagers through betting exchanges where users bet against one another. With so many betting options available, knowing how to read different odds formats is an important advantage.

Fractional Odds

Fractional odds are traditionally used by many sportsbooks in the United Kingdom and Ireland. They are written as fractions such as 3/7, 5/2, or 7/1.

The fraction represents the profit you earn relative to your stake.

For example, imagine Manchester City is heavily favored to beat a newly promoted club at 3/7 odds.

Bet $7

Profit $3

Total Return $10

If you stake a different amount, you simply multiply your wager by the fraction.

For example, a $35 bet at 3/7 odds returns:

Profit: ($35 × 3) ÷ 7 = $15

Total Return: $50

Although fractional odds have a long history in soccer betting, many bettors find them less intuitive than decimal odds because calculating payouts requires an extra step.

Comparing Fractional Odds

Suppose two sportsbooks offer these odds on the same soccer match:

Arsenal to win at 3/7

Arsenal to win at 5/11

Which sportsbook offers better value?

Converting both fractions to a common denominator shows that:

3/7 = 33/77

5/11 = 35/77

Since 35/77 is larger, 5/11 offers the better payout for the same selection.

This illustrates why comparing odds before placing a soccer bet can increase your long-term returns.

American Odds

Many U.S. sportsbooks display soccer betting lines using American (moneyline) odds.

Positive Odds

Positive odds show how much profit you’ll earn on a $100 wager.

Example:

Inter Miami +200

Bet: $100

Profit: $200

Total Return: $300

Positive odds are typically assigned to underdogs.

Negative Odds

Negative odds indicate how much you must wager to win $100 in profit.

Example:

Manchester City -233

Bet: $233

Profit: $100

Total Return: $333

Negative odds are commonly used for strong favorites.

Although moneyline odds are standard in the United States, many soccer bettors prefer decimal odds because they’re quicker to calculate and easier to compare.

Decimal Odds

Decimal odds are the most common format used by international online sportsbooks and are especially popular among soccer bettors.

They show your total return, including your original stake.

For example:

Decimal Odds | $10 Bet | Total Return | Profit
1.43 | $10 | $14.30 | $4.30
2.00 | $10 | $20.00 | $10.00
3.50 | $10 | $35.00 | $25.00

Imagine Barcelona is offered at 1.43 to beat a lower-ranked opponent.

A $25 wager would return:

$25 × 1.43 = $35.75

Profit:

$35.75 − $25 = $10.75

Because only one calculation is required, decimal odds make it much easier to compare prices between sportsbooks.

Soccer Betting Odds Conversion

The same soccer betting market can be displayed in several formats:

Fractional | Decimal | American
3/7 | 1.43 | -233
1/2 | 1.50 | -200
1/1 | 2.00 | +100
2/1 | 3.00 | +200
5/1 | 6.00 | +500

All three formats represent the same implied probability—they simply present the information differently.

Why Odds Matter in Soccer Betting

Odds determine much more than your potential payout. They also reflect the sportsbook’s assessment of each team’s chances while incorporating the bookmaker’s built-in margin, often called the vig or juice.

Successful soccer bettors don’t simply back the team they think will win. They compare odds across sportsbooks, calculate implied probabilities, and look for situations where the available price is higher than the team’s true chance of winning.

Whether you’re betting on the English Premier League, UEFA Champions League, Serie A, Bundesliga, MLS, or the FIFA World Cup, understanding fractional, American, and decimal odds is one of the most important skills for finding long-term value in soccer betting.