High Quality Content by WIKIPEDIA articles! Fully automatic time is a form of race timing in which the clock is automatically activated by the starting device, and the finish time is either automatically recorded, or timed by analysis of a photo finish. The system is commonly used in track and field as well as Horse Racing, Dog Racing, rowing and more frequently Formula car racing. In these fields a photo finish is used. It is also used in competitive swimming, for which the swimmers themselves record a finish time by touching a touchpad at the end of a race. In order to verify the equipment, or in case of failure, a backup system is usually used in addition to FAT. In races started by a starting gun, a sensor is typically attached to the gun which sends an electronic signal to the timing system when fired. Alternatively, a starting light or sound which is electronically triggered, the system is typically also wired to the timing system. In sports that involve a finish line that is crossed, the current finishing system is a photo finish which is then analysed by judges.

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