My viewpoint is any such correlation is so weak as to be fairly worthless.
In otherwords the error bands are so large that that there is little predictive value.
I looked for other discussions of this topic but couldn't find any. That's why I created this forum.
I was wondering if there is a correlation between a USCF (United States Chess Federation), FIDE (International rating), and chess.com ratings. For example would a 1200 USCF be 1300 FIDE?