Performance Anomaly Detection in Athletics: A Benchmarking System with Visual Analytics
Blessed Madukoma, Prasenjit Mitra

TL;DR
This paper introduces a benchmarking system with visual analytics that processes extensive athletics performance data to detect suspicious patterns potentially indicating doping, complementing traditional biological testing methods.
Contribution
It presents a comprehensive system integrating multiple detection methods and an interactive interface to improve anti-doping efforts through data-driven performance analysis.
Findings
Trajectory-based methods effectively identify doping patterns.
All detection methods face challenges with incomplete data.
The system balances detection accuracy with false alarm reduction.
Abstract
Anti-doping programs rely on biological testing to detect performance-enhancing drugs, but such testing costs over $800 per sample and is limited by short detection windows for many prohibited substances. These constraints leave large portions of athletes without regular testing, motivating complementary screening approaches that analyze routine competition results to identify suspicious performance patterns. We present a system that processes 1.6 million athletics performances from over 19,000 competitions (2010-2025) using eight detection methods ranging from statistical rules to machine learning and trajectory analysis. We validate all methods against publicly confirmed anti-doping violations to measure their effectiveness in identifying sanctioned athletes. Trajectory-based methods, which compare performances to expected career progression, achieve the best balance between detecting…
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