Category
page 1Sports officiating technology
video assistant referee
in association football, match official that reviews decisions made by the head referee with the use of video footage

whistle
thumb|A metal pea whistle
thumb|A 3D-printable whistle
goal-line technology
electronic aid to determine if a goal has been scored or not
Hawk-Eye
thumb|Hawk-Eye camera system at the Kremlin Cup tennis tournament on 20 October 2012, Moscow
vanishing spray
marking substance in sports, typically used on the playing ground, in order to provide a temporary visual marker
photo finish
method of determining winner of races
instant replay
video reproduction of an earlier live occurrence during an event
Umpire Decision Review System
technology-based system used in the sport of cricket
dead heat
common expression used in horse racing and other sports to describe a tie
GoalRef
GoalRef is an association football goal-line technology system developed by German research institute Fraunhofer in association with Select Sport. It works by detecting the passage of the ball using magnetic induction. Along with Hawk-Eye, GoalControl and Cairos it is one of four systems approved for use in the professional game by the International Football Association Board (IFAB).
Video Support
Sports officiating technology
Fully automatic time
Form of race timing