Hammer rule

The hammer must pass a rigorous inspection to obtain a competitive certification. It is the only tool on the track and field with movable parts and must be strictly regulated. Below are some excerpts from the main rules for hammering.

1. The implement must be certified for weight, length, diameter, handle and center of gravity.

One. Minimum weight 7.220kg senior male, 6.000kg primary male, 5.000kg young male, 4kg female [advanced, primary and young]
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Bay male maximum length 121.5cm, female maximum 119.5cm
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C. Male minimum length 117.7cm, female 116cm
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d. Ball diameter is 110mm male, 95mm female
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That is, the ball diameter is up to 130mm male, 110mm female
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F. The handle must form an isosceles triangle with a long side equal to 110 mm and must be a rigid structure that does not have a significant stretch when thrown
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G. The wire must be complete, the straight spring wire diameter is not less than 3mm, and it cannot be stretched significantly when thrown
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H. Center of gravity...

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Orignal From: Hammer rule