NAME

Algorithm::Elo

SYNOPSIS

use Algorithm::Elo;

my ( $player-a-score, $player-b-score ) = 1_600, 1_600;

( $player-a-score, $player-b-score ) = calculate-elo($player-a-score, $player-b-score, :left);

DESCRIPTION

This module implements the Elo rating system, commonly used to rate chess players.

SUBROUTINES

calculate-elo(Int $left, Int $right, :left, :right, :draw)

Given two current ratings and the result of a match (:left if the left player wins, :right if the right player wins, :draw for a draw), return two new ratings for the left and right players.

SEE-ALSO

Elo Rating System

AUTHORS

Rob Hoelz
Raku Community

COPYRIGHT AND LICENSE

This library is free software; you can redistribute it and/or modify it under the MIT license.