What are the specifications of a hockey ball?

Answer 1

• A hockey field is 91.40 metres long and 55.00 metres wide. It has a centreline halfway between the backlines and parallel to them, and one line at 22.90 metres from each backline, measured between the furthest edges of each line.
• Quartercircle arcs are inscribed with a radius of 14.63 metres (to the closest edge) and a centre 1.83 metres from the middle of each backline, on the inside of the field. The ends of each arc are connected by another straight line that is 3.66 metres long.
• At 5.00 metres and 10.00 metres from the middle of each backline and at 5.00 metres and 14.63 metres along each sideline from the backline, a 300mm long line is drawn outside the field of play on each side of both backlines.
• A 150mm line is also marked outside the field 1.83 metres from the middle of the backline on each side, and a penalty spot 150mm wide is marked at each end, with its centre 6.40 metres from the middle of the backline.
• All lines are 75mm wide, are included in the width and length, and all markings should be in white.

100 yards (91.44 metres) long and 60 yards wide.

Answer 2

• A Field Hockey ball is required to be spherical,
  
• Weight between 156 and 163 grams
  
• Have a circumference of between 224 mm to 235 mm.
• It can be any colour although white is the more prefered for international games.
• The ball can be smooth or dimpled.
• Smooth Balls are usually used for Indoor (could be used for outdoor training)
  
• Dimpled Balls are usually used for Outdoor. so that it runs smoothly along the turf.
  

Answer 3

* An official hockey ball is spherical, with a circumference of between 224 and 235 milimetres. * It should weigh between 156 and 163 grams. * It may be made of any material, and is coloured white (or an agreed colour which contrasts with the playing surface). * The ball is hard and smooth, but indentations (dimples, lines) are permitted.

Answer 4

All specifications refer to the stick in its playing form - the way you would use it on the field (with any tapes, resins, etc. applied): * The total weight of the stick must not exceed 737 grams. * The stick must be able to pass through a ring with an internal diameter of 51 millimetres. * The stick must be smooth - including after tapes or resins have been applied - with no rough or sharp parts. * The stick must be a 'J' or 'U' shape. * It must be flat on the left hand side only. * Any convex or concave deviation on the playing side must be smooth, and cannot exceed 4 millimetres in either direction. * Any rake or bow must be continuous along the length of the stick; it may be on either the back or the front, but not both; and cannot exceed 25 millimetres in depth. * The edges and nonplaying side must be rounded. * Ball speed may not exceed 98% of stick head speed (under lab test conditions). * The stick and any additions may be made of any material provided they are not dangerous and are fit for the purpose, and pending the next restriction. * Metal and metallic parts are forbidden from use in a field hockey stick.

Answer 5

• The inside dimensions of a field hockey goal are 2.14 metres to the crossbar from the ground and 3.66 metres between the posts.
• Each bar/post is 50 millimetres wide and 50 to 75 millimetres deep.
• The sideboards and backboard are 460 millimetres from the ground to the top; each sideboard must be at least 1.20 metres deep, parallel with the other, and at right angles to the backboard. The backboard is 3.66 metres wide.
• The depth of the goal at ground level must be at least 1.20 metres; the depth at the height of the crossbar must be at least 900 millimetres.
• The net must be of mesh with spacing not more than 40 millimetres, and attached to all posts, sideboards, the bar and the backboard at intervals of not more than 150 millimetres.

As a sidenote, the backboard and sideboards must be of darker colour than the playing surface; the posts and bar must be white; the net must hang loosely to prevent rebounding; and any attachments used to hold the net onto the frame must be safe, as in no sharp or protuding edges and strong enough to take a direct hit from the ball.

Further information is included in the Rulebook, available on the FIH website at www.fihockey.org.

Answer 6

Between 71.3mm and 74.8mm.

Answer 7

The balls weigh 156-163 g (5.5-5.7 oz)