Tennis Ratings Explained - - What rating are you?

Current average chess rating - Chess Forums

SKILL-LEVELS Bay Area Chess

In chess.com users have a rating. What is this? Is this connected to a wider chess rating? How can one's rating level be interpreted, and what is a passably good rating?

Chess Ratings - Chess Terms

How to be so good at chess (1406 on chess.com) when I am only 36 - Quora

The Elo ratings: Inflation or Deflation?

How do chess.com Bullet and Blitz ratings compare with FIDE/USCF ratings? - Quora

Software Chess

Standard vs. Blitz Elo Chess Ratings [OC] : r/chess

Should Women's Chess Titles Be Eliminated?