Gukesh defends his World Championship title rated 75 points below his challenger
A defending champion lower-rated than the challenger is rare. Understanding why it happened explains how chess ratings actually work.
J. R. Patel ·
Ratings
All coverage tagged Ratings.
How Elo ratings actually work, with the formula
A rating is not a score. It is a prediction, updated by exactly how wrong that prediction turned out to be.
J. R. Patel ·