Can Sportsbook Odds Predict Soccer Matches Accurately?

Sportsbooks spend enormous resources setting accurate odds, but are their prices truly perfect? If betting markets are efficient, sportsbook odds should closely match the real probability of each match outcome.

To test this idea, researchers have compared closing betting odds with actual soccer results. While sportsbooks perform remarkably well overall, certain patterns suggest they may slightly underestimate some outcomes—particularly strong favorites and draws between evenly matched teams.

How Accurate Are Soccer Odds?

Consider matches where the home team’s decimal odds are around 2.00.

Odds of 2.00 imply approximately a 50% chance of winning.

Over a full league season, matches with home odds in this range tend to produce home victories very close to 50% of the time. This suggests sportsbooks do an excellent job pricing games where neither team has a significant advantage.

In these situations, betting markets appear highly efficient.

Strong Favorites May Win More Often Than Expected

The picture changes when one team is a heavy favorite.

Suppose a favorite is priced between 1.33 and 1.43 in decimal odds.

Those prices imply a winning probability of roughly 70% to 75%.

However, historical league data has shown that these favorites sometimes win even more frequently than the odds suggest.

While the difference isn’t always statistically significant over a single season, several academic studies across soccer, horse racing, and other sports have identified a similar pattern.

This phenomenon is often linked to what’s known as the favorite-longshot bias.

Why Bettors Love Underdogs

Many recreational bettors prefer wagering on long shots.

Winning a small return by backing a heavy favorite isn’t nearly as exciting as risking a few dollars on a massive underdog that could produce a huge payout.

For example:

Betting $10 on a favorite at 1.30 returns only a modest profit.

Betting $10 on a team priced at 11.00 could produce a much larger payoff.

Because bettors naturally chase bigger payouts, sportsbooks may occasionally shade prices slightly toward underdogs, making favorites offer a bit more value than expected.

Draws Between Evenly Matched Teams

Another interesting trend appears when two teams are closely matched.

When sportsbooks rate both clubs as having similar chances of winning, draws tend to occur more frequently than many bettors expect.

Suppose the implied probabilities look like this:

Home win: 35%

Away win: 37%

That leaves roughly a 28% implied probability for a draw.

Historical results, however, sometimes show draws occurring closer to 34% or 35% in these evenly balanced contests.

Again, the difference isn’t always large enough to be statistically conclusive over a single season, but it’s consistent enough to attract the attention of data-driven bettors.

Why Draws May Be Underpriced

Most casual bettors prefer picking winners.

Backing a draw isn’t nearly as exciting as choosing one side to win, even when the statistics suggest the match is evenly balanced.

This betting behavior can influence market prices, potentially creating slight value on draws in closely contested games.

A Simple Soccer Betting Strategy

Based on these observations, one possible value betting approach is:

Back the favorite when one team is significantly stronger according to the odds.

Consider betting the draw when the sportsbooks rate both teams as nearly equal.

One practical method is to compare the implied win probabilities:

If one team’s implied probability is substantially higher than its opponent’s, the favorite may deserve consideration.

If the two teams have very similar implied chances of winning, the draw may offer better value than the market suggests.

Small Edges Matter

It’s important to keep these findings in perspective.

The differences between sportsbook probabilities and actual outcomes are generally small. They won’t guarantee winning bets, nor will they produce profits overnight.

However, successful soccer betting isn’t built on huge mistakes by sportsbooks.

Instead, it’s based on identifying small, repeatable edges that occur consistently over hundreds or thousands of wagers.

Even a tiny improvement in your probability estimates can make a significant difference over the long run, especially when combined with good bankroll management and line shopping across multiple sportsbooks.