How is the long jump calculated?

The long jump distance is measured from the takeoff board to the nearest mark made in the sand pit by any part of the jumper's body. The measurement is taken perpendicular to the takeoff line, ensuring accuracy. The jumper's performance is typically recorded in meters or feet, and any fouls, such as stepping beyond the takeoff board, can invalidate the jump. The longest valid jump out of a series of attempts is considered for scoring.