dave.de...@planet.nl wrote:
What you are saying is that many professionals are overrated or underrated (sometimes by as much as two stones).

No, what I'm saying is that professional ranking systems are not meant to be rating systems and should not be treated as if they were rating systems. (As Hideki pointed out, professional ranks never go down, only up.)

The set of professional players whose strength is within a third of stone of Lee Sedol or Lee Changho is surely smaller than the set of professional players who are ranked 9dan. If you wanted a rating system which tops out at 9dan, you'd have to demote people. Professional organisations don't want that.

So you should consider professional ranks more of a lifetime achievement indicator. They are not a rating system.

Regards,
Michael
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