At the 2026
World Cup, the refs on the field and the officials on the sidelines will be able to use an abundance of tech to help call penalties, spot offside violations, and make other consequential decisions.
The video assistant referee system, known as VAR, and the semi-automated offside technology (SAOT) have been used in
soccer for years. But the setup at this summer’s World Cup represents some of the most advanced uses of adjudication tech to date—not just in soccer, but across all high-level sports.
During each match, the pitch will be awash in sensors, cameras, and new computer vision software. One especially notable advancement this year is the use of digital twins. Every player in the World Cup has had their body scanned by a computer. The digital twin of any athlete—which precisely matches their height, limb length, and shoe size—can be dropped into a virtual simulation of the game to determine their exact position relative to the ball, boundary lines, and other players. Officials can use all of this data to help spot infractions, determine penalties, and smooth out the edges of the beautiful game.
Even though these systems can study the action more closely than is possible with the human eye, flesh-and-blood refs are still part of the game. But when the referees get it wrong—which they do, ask any fan—and their decisions are challenged, officials can to turn to the technology to correct any mistakes, replacing subjective calls with objective truths.
These systems are primarily used to catch big errors, like checking to see if a particular player was offside during a play that resulted in a game-deciding goal. But teams can often call for a review of even inconsequential plays. It raises the question of where the system’s value lies: in bringing an impartial eye to pivotal moments, or in allowing the league to adjudicate tiny infractions of an inch here or an inch there.
<small>Source: Ars Technica</small>
