The shot put engages throwing a heavy metal ball as far as possible in a thrusting movement called the â€˜shotâ€™. The shot put skill consists of a throwing sphere, a stop-board and a landing zone. Contestants apply their throw from inside a circle 2.135m in diameter, with a toe board around 10cm high at the front of the circle. The distance hurled is gauged from the inside of the perimeter of the circle to where the shot lands at its nearby interruption of the soil.
The throwing weight is made of bank iron, steel or other appropriate material, the crest of which is flush with the ground outside. The diameter within the throwing circle measures 2.135m (Â±5mm) and the edge at least 6mm in width, 70mm to 80mm deep and colored white.
The core of the sphere is made of concrete, asphalt or some other solid but not with the slippery substance. The outer surface must be plane and 1.4cm-2.6cm lesser than the upper edge of the border of the sphere. A portable sphere conferring these measurements is allowable.
The stop board is made of wood or other appropriate substance in the form of a curve thus the inner edge coincides with the inner edge of the rim of the sphere. Itâ€™s positioned in the middle between the segment lines, and built so that it can be rigidly fixed to the ground. The board is 1.22m length inside, 11.2cm wide and 10cm high while rigidly in position.
The surface of the landing segment must allow for the shot put to create a mark upon landing. Itâ€™s made of natural grass or other appropriate material. The landing part must be placed from the central point of the circle with an angle of 34.92Â° and marked by 50mm broad white lines, the inside limits of which from the border of the segment. The length of the segment is 25m. The angle of 34.92Â° is reached if the two segment lines at a distance of 25m are gapped 15m apart.
The highest grant for the overall descending inclination of the landing segment, in the throwing direction, should not go beyond 0.1 per cent.