Odds are predictions. We measure them.

OddsAccuracy benchmarks football odds accuracy
across operators, leagues, and time windows.

OA Score — Global Ranking (Opening)

Aggregate OA Score across all included leagues

Ranking based on absolute OA Scores. Lower values indicate higher forecasting accuracy; higher values indicate weaker calibration.

Rank Bookmaker OA Score— % of Random guessing Error Magnitude
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What Is OA Score?

OA Score measures the distance between predicted probabilities and actual match outcomes. Lower values indicate better calibration and stronger predictive accuracy.

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Are Football Odds Accurate?

Football odds are implied probabilities, not guaranteed truths. Bookmakers are often efficient, but their estimates are not perfectly aligned with real outcomes. Proper evaluation requires probabilistic scoring and longitudinal comparison.

Research

About OddsAccuracy

OddsAccuracy is an independent football analytics platform that evaluates how accurately bookmakers estimate match probabilities. The platform applies Brier-score-based metrics to measure probability calibration, short-term accuracy dynamics, and market efficiency across leagues, operators, and time windows.

OddsAccuracy focuses exclusively on descriptive and methodological analysis of odds behavior. It does not provide betting tips, predictions, or wagering recommendations. All insights are derived from publicly available odds data and are intended to support transparency and understanding of bookmaker accuracy rather than decision-making guidance.