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Effects of crowd size on referee decisions: analysis of the FA Cup

Paul Downward1, Marc Jones

  • 1School of Sport and Exercise Science, Loughborough University, Loughborough, UK. p.downward@lboro.ac.uk

Journal of Sports Sciences
|September 14, 2007
PubMed

Insights

Away teams receive more yellow cards in the FA Cup. Crowd size influences home team yellow cards, with larger crowds potentially leading to more fouls due to noise or referee appeasement.

Area of Science:

  • Sports Science
  • Football Analytics
  • Refereeing Behavior

Background:

  • Understanding factors influencing disciplinary actions in professional football is crucial for game integrity.
  • Previous research has explored various influences on referee decisions, but the specific impact of crowd size on yellow card allocation requires further investigation.

Purpose of the Study:

  • To analyze the relationship between crowd size and the number of yellow cards awarded in FA Cup matches.
  • To determine if crowd size affects the likelihood of yellow cards being issued to home versus away teams.

Main Methods:

  • Data collected from 857 FA Cup games spanning six seasons (1996-2002).
  • Statistical analysis performed to examine the number of yellow cards awarded, differentiating between home and away teams.
  • Investigated the correlation between crowd size and yellow card incidents, exploring non-linear relationships.

Main Results:

  • A significantly higher number of yellow cards were issued to away teams compared to home teams.
  • A non-linear relationship was observed between crowd size and yellow card allocation.
  • The probability of the home team receiving a yellow card generally decreased with increasing crowd size, except at the largest crowd sizes where this effect diminished.

Conclusions:

  • Crowd size appears to influence referee decisions, potentially through crowd noise acting as a heuristic or referees attempting to appease larger crowds.
  • Findings suggest implications for referee training and strategic preparation for teams playing in high-attendance away matches.

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