A few statistics from the USCF database - Chess Forums
Por um escritor misterioso
Descrição
At the USCF website, in the Member's Section, the "Golden Database" is available for download. This database contains the member name, USCF ID, member expiration date, member state, and rating of all current (and non current) members.Not that anyone cares, but here are a few statistics from that database

X-rays, skewers, dogs and cats

Chess In Science Mags

Map of the average USCF rating of the top ten players in each state's most recent championship/open (table in comments) : r/chess

gambit_Feb_2022 – North Carolina Chess Association

White Knight Review

How long does it take to get good?

Convetka

Strange Statistics in ChessBase - Chess Forums

Calling all chess mathematicians and statisticiansneed formula to indicate percentage rating rank - Chess Forums

Rochester Chess Club Blog: The Vast Range of Chess Players

X-rays, skewers, dogs and cats
de
por adulto (o preço varia de acordo com o tamanho do grupo)