American Darts Organization (ADO) Competition Rules (c)

Equipment

Darts
The maximum length of darts in the game can not be used more than 30.5 cm, severe each dart shall not exceed 50 grams. Each dart tip should be made recognizable, dart and dart barrel wing components.

Dart Board
Dart board should be flocking to the standard 18-inch target (bristle board), its type should ADO (Sportcraft / Nodor) approval, according to the standard order of 1-20 minutes.

International standard dartboard
Double zone (scores twice)
Haplotype area (labeled fraction)
Three times the area (score three times)
Within the bovine (double zone 25 or 50 minutes)
Outside the bull's-eye (25 points)
Outside the competition area (no score)
Gauge
The inside width of the double and triple zone area = 8mm.
The inside diameter of the inner bovine = 12.7mm.
Outside the bull's-eye of the inside diameter = 31mm.
Double the area outside of the wire to the bull's-eye center = 170mm.
Three times the area of the outer steel wire to bovine center = 117mm.
Double the area outside of the wire to the outside of the double zone wire = 342mm.
The total diameter of the dartboard = 457mm.
Zoning wire specifications (maximum standard wire size) = 16SWG.
20 points with dark wedge should be central to the Founder of the wedge.
Dartboard placement without any changes or attachments.
Three times inside the scoring area should narrow band scores, scoring area outside the narrow band should score twice.
Center ring outside deserved 25 points, center ring inside deserved 50 points, and called "bull's-eye"
The minimum throw distance of 7 feet 91/4 inches (2.37 meters); height dartboard should be 5 feet 8 inches (1.73 m) (from the floor to the center bulls-eye); if bovine central to the floor throwing line linear distance meter, compared with 9 feet 71/2 inches (2.93 meters).

Illumination
Light placement should be attached together the following requirements: to shine brightly dartboard, darts cast shadows as small as possible, but does not affect the position of the flying darts.

Throw Line
If possible, they should be placed on a slightly raised the minimum throw distance of throw line, the line 11/2 inches high, two feet long lines. Line from the rear end of the disk on the floor of the darts vertical projection lines 7 feet 91/4 inches (1.73 meters).
In the tournament, throwing the line should be flush with tape or a similar sign from the dartboard should be at a minimum distance meter.
If a player's foot or shoe throwing embarked upon throwing line, he threw a dart at this time can not score and can not reroll. Before applying this rule, only a warning.
If players want to throw darts at both ends of the line outside, then he should throw line extended feet on straight after.
Bullseye center height = 1.73 m (5ft - 8ins)
The minimum throw distance = 2.37 m (7ft - 9 1 / 4ins)
Bull's-eye center to throw away the line after the slash = 2.93 meters (9ft - 7 1 / 2ins)
Throw line bump height = 38mm (1 1 / 2ins)
Throw length = 610mm (2ft - 0ins)
Metric conversion factor 1cm = 0.3937 inch

Scoreboard
Scoreboard should be placed on the side of less than four feet dartboard, dartboard and not more than 45 degrees at an oblique angle.




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