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These Fake Martial Arts Black Belts Get Exposed In The Worst Way - http://www.lowkickmma.com/UFC/these-fake-bjj-black-belts-get-exposed-in-the-worst-way/

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The math is wrong on this.... but it's still a good point. A black belt, (according to the 20 in 10,000 referenced above) is 1 in 500 for 1st dan and 1 in 2000 for 2nd Dan.

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