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);
This module implements the Elo rating system, commonly used to rate chess players.
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.
Elo Rating System
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