See What Others Don’t

Perfecting Refereeing Decisions

The "Perception4perfection" website is produced by the "Perception and Performance" lab of the Faculty of Movement and Rehabilitation Sciences at KU Leuven in cooperation with UEFA. Founder of this webapp is professor Werner Helsen.

The main purpose of this online training tool is to improve perception and decision-making skills of ((video) assistant) referees in professional football. During the online training, the participants are challenged via real match footage on the one hand and simulations from an in-game perspective on the other hand. This type of training provides complementary exposure to typical match incidents in addition to on-field training exercises.

The Ultimate Decision-Making Platform for Football Referees

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Figures since May 2026

Active in 15 countries

Active in 15 countries

more than 3350 users

more than 3350 users

more than 2.382.000 clips completed

more than 2.382.000 clips completed

345 most sets completed in one day

345 most sets completed in one day

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