What is A sector in field events?

In field events, a sector refers to a specific area marked out for athletes to perform their throws or jumps, such as in shot put, discus, or javelin. Each sector is typically defined by boundary lines that extend from the center of the throwing circle or take-off board to the ground, creating a fan-like shape. The measurement of the event is taken from the point of landing within this sector to the designated mark or starting point. Proper adherence to sector boundaries is crucial for the validity of the athlete's performance.