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keisanHigh-precision calculations for everyday life and work

Request a new rating

Author: FruitsExecutions: 163

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Match results... A win is "1," a loss is "0," and a tie is "0.5"
Rating
points
Opponent Ratingpoints
Match Results
Katsu
Coefficient
points
Rating after update points
The rating algorithm is as follows:

 New Rating R' = Coefficient K × (Match Result S - Expected Win Rate E) + Rating R

・Coefficient K... The maximum amount by which the rating can fluctuate per match
・Match Result S... "1" for a win, "0" for a loss, "0.5" for a draw (0 ≤ S ≤ 1)
・Expected Win Rate E... 1/(1 + 10^((Opponent Rating Ri - Rating R)/400))

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