No Fans, No Home Advantage. Sport Psychological Effects of Missing Supporters on Football Teams in European Top Leagues

Leitner, Michael C., and Fabio Richlan. 2020. “No Fans - No Home Advantage. Sport Psychological Effects of Missing Supporters on Football Teams in European Top Leagues.” PsyArXiv. September 9. doi:10.31234/osf.io/jqus9

Abstract
Introduction. Due to the COVID-19 pandemic, European top football (soccer) leagues played the final rounds of season 2019/20 without or strongly limited attendance of supporters (i.e., “ghost games”). From a sport psychological perspective this situation poses a unique opportunity to investigate the crowd’s influence on sports professionals’ behavior and performance.
Methods. A total of 1286 matches - played in the top leagues of Spain, England, Germany, Italy, Russia, Turkey, Austria and the Czech Republic - were analyzed for result, points, goals, fouls, bookings and reason for booking and contrasted between respective games of season 2018/19 (regular attendance) and season 19/20 (“ghost games”).
Results. There are three main findings. First, the marked home advantage identified in the regular 2018/19 season vanishes almost completely in the “ghost games” of the 2019/20 season. Second, home teams lose significantly more matches, whereas away teams win significantly more matches in “ghost games” compared to regular games. Third, home teams are booked significantly more often with yellow cards for committing fouls in “ghost games” relative to regular games.
Conclusion. We conclude that missing supporters in professional elite football leagues dissolve the “home advantage” effect. The missing support of a “home crowd” has also a direct effect on the experience, behavior and performance of home teams. Therefore home teams tend to compensate with increased aggressive behavior, resulting directly in more fierce tackles and ultimately in significantly more yellow cards awarded for foul play.