Correlation between rating and puzzle rush high score 📈

How strong is the association between a player's blitz rating and their high score on puzzle rush?

Here are results from a representative sample of 25 individuals on chess.com . Each individual has played puzzle rush at least five times, and they have played at least 5 rated blitz games.

According to this sample, there is a strong linear correlation between the two variables (r=0.90), with players' high scores able to account for about 81% of the variation in their blitz ratings.

A player with a high score of 25 is expected to have a blitz rating of 1600.

Also, the regression line indicates that a player's ELO in blitz is expected to increase by about 54 points for each point their high score on puzzle rush improves.

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