Faculty of health sciences
Two contested decisions at the 2026 World Cup have reignited debate over how video assistant referee (VAR) reviews should work, and how far back a referee should look when deciding what counts as part of the same passage of play.
VAR allows referees to review contentious incidents using replay footage, with the human referee making the final decision. It’s meant to catch “clear and obvious errors” or incidents that the on-field officials missed. A referee reviewing an incident must decide how far back in time the reviewable passage of play extends.
A 2021 study of 2,195 competitive football matches across 13 countries found referees got calls right 92.1 per cent of the time, rising to 98.3 per cent after a VAR intervention. But replay only supplies the evidence. It doesn’t supply interpretation, responsibility or a decision about how much of the play needs to be examined to establish appropriate context. That judgment falls to the referee. VAR’s effectiveness depends on referees interpreting the evidence within the incident’s interactions and its relevant context. As researchers who study the ethical implications of AI use in soccer, we’ve found that two decisions from the 2026 tournament illustrate how difficult these boundary calls can be in practice.
Angela Schneider, Director, International Centre for Olympic Studies, Western University and Guanpeng Zhou, Research Associate, International Centre for Olympic Studies, Western University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Expert Insight reflects the perspective and scholarly interest of Western faculty members and is not an articulation of official university policy on issues being addressed.
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