What is the highest FIDE rating ever achieved by an unrated player

What is the highest chess rating that a non-grandmaster (GM) player can achieve? Are there any non-GM players who can beat GMs consistently? If so, how does he do it? Is there

Proposals for changes to FIDE Ratings Regulations

FIDE and ChessKid Unrated GIRLS ONLY tournament to start on July 10

Chesscology

The Greatest Female Chess Player Of All Time? - Chessable Blog

The distribution of the German chess rating with the best-fit normal

Understanding The Chess Rating System, by John Cepoi

Praggnanandhaa Gains 660 Points As FIDE Adjusts Rapid, Blitz Ratings - Chess .com

FIDE rating distribution - Chess Forums

rating - Why are unrated players counted as rated players in this FIDE rated event? - Chess Stack Exchange

A Few Facts About Chess Ratings - Limestonian Chronicle

My Chess(able) Story: Increasing my Online Rating from 1100 to 2400+ in 4 Years - Chessable Blog

What is the highest FIDE rating achieved in chess by an unrated player in the first attempt (single rating list)? - Quora