After practice at Dallas-Fort Worth the other night at the second dojo we were discussing the number of candidates it takes for there to be 10 new 8 Dan. Most were very surprised by the number of people it takes to pass 6 and 7 Dan so you can have 10 new 8 Dan.
My numbers were somewhat off as I scribbled them on a napkin. But based on maybe generous percentages they are as I figured them now.
7,692 people testing for 6 Dan with a 13% pass ratio to create 1000 new 6 Dan.
7,692 x .13=1,000
10,000 people testing for 7 Dan with a 10% pass ratio to create 1000 new 7 Dan.
1,000 x .10=100 x 10=1,000
1000 people testing for 8 Dan with a 1% pass ratio to create 10 new 8 Dan.
10 x 7,692=76,920
10 x 1,000=10,000
86,920 people for 10 hachidan.
I find these numbers quite incredible. Of course as we know many will be repeat candidates. Still it does not change the number of candidates an examiner must look at.



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