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Calculate ELO difference from record or winning percentage

Chess Elo Rating Difference Calculator

Wins Losses Draws
Points Games
Winning percentage

Elo difference :

Elo Rating Change Calculator

The value K is the maximum change in rating.

Player Elo   : K :
Against Elo :

Win Draw Loss

Expected Percentage :

Chess2u.com - ELO Calculator Javascript by Jonathan K.

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