My Tips to IMPROVE YOUR CHESS RATING.

Is 1350 a good 10-minute rapid chess rating in chess.com? - Quora

FIDE Elo percentiles : r/chess

How does percentile work? - Chess Forums

percentiles - Chess Forums

The Effect of Chess on Standardized Test Score Gains - David I. Poston, Kathryn K. Vandenkieboom, 2019

Rating (i.e., higher is better) for Swedish chess players analyzed by

What 4,000 Games of Chess Taught Me About Life, by Mark C Watney

Solved Chess Ratings. Arpad Elo was a physics professor at

What 120,000 Chess Tactics with a 99.9% Percentile Rating Taught Me About Life, Business, and

Setting Up Bill Rate For Individual Burden Codes