Quantifying human performance in chess

ELO ratings: Variations in time - Woochess-Let's chess

Chess Ratings Explained – Chess Armory

Sonas: Overall review of the FIDE rating system

Chess Ratings - Chess Terms

Is there any chance that a 1300 rated player can beat a 1400 rated player? - Chess Forums

Accuracy % by Chess Rating? - Chess Forums

Chess Ratings - How They Work

Player Rating Percentiles (Chess.com) : r/chess

Took the rating system from the video explaining chess ratings on and attached them to a mountain. : r/chess

What's Wrong With the Elo System?