Trail official

Trail Official
The referee or official who follows the ball upcourt after a change of possession, then works near the midcourt area marker.

It is the primary duty of the trail official to signal if goals count. If for any reason he does not know if the goal is made, he should ask the other officials. If none of them saw the goal made they should refer to the timer.

See also: Basket, Court, Free throw, Referee, Shot