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Variability of soccer referees' match performances
M Weston1, B Drust, G Atkinson
1Teesside University, Sport & Exercise Sciences, School of Social Sciences and Law, Middlesbrough, United Kingdom. m.weston@tees.ac.uk
International Journal of Sports Medicine
|December 18, 2010
Summary
Soccer referee performance shows high variability between matches, especially in sprinting and foul counts. This performance variation is not linked to referee age or experience, impacting research sample size needs.
Area of Science:
- Sports Science
- Performance Analysis
- Refereeing Studies
Background:
- Understanding variability in sports officials' performance is crucial for accurate analysis.
- Previous research has not extensively quantified between-match variability in soccer referees.
Purpose of the Study:
- To determine the extent of between-match variability in soccer referees' match performances.
- To investigate if referee age and experience influence performance variability.
Main Methods:
- Utilized a computerised tracking system (Prozone) for 1,269 match observations on 59 English Premier League and Championship referees (2003-2008).
- Calculated between-match coefficients of variation (CV) for various performance metrics.
- Compared CVs across different referee age and experience groups.
Main Results:
- High variability (CVs) observed in high-speed running distance, recovery time, explosive sprints, total sprints, and number of fouls.
- Lower variability (CVs) found in total distance covered, top sprinting speed, distance from the ball, and distance from fouls.
- Referee age and experience did not significantly influence the observed match activity variability.
Conclusions:
- Soccer referees exhibit substantial between-match variability in key performance indicators.
- Performance variability is independent of referee age and experience.
- Future research on soccer referee performance requires large sample sizes to account for inherent variability.
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