Football Down Markers Why Do They Need The 10 Yard Chains To Verify A "first Down" In American Football?
Why do they need the 10 yard chains to verify a "first down" in American Football? - football down markers
It seems that all they need is a series of 1 meter is, for the first 9 meters are obvious.
They are marks on the ground is not enough?
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1 comments:
Sometimes the ball is between the marks.
One end of the cord is at the point at first and was determined.
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