Elo

Elo is a Go-based Elo Ratings calculator.

Current Version: 0.1.1

Master	Develop

Getting Started

go get github.com/mtslzr/elo

import "github.com/mtslzr/elo"

Takes a team rating, win probability, and result (win = 1, loss = 0, draw = 0.5), and returns the new rating. Based on kFactor of 32.

newR = kF * (Result - winP)

newRating := elo.NewRating(oldRating, winProbability, result)

newRating := elo.NewRating(1500, 0.450, 1)
// 1518

Takes a team and opponent rating, and returns the win probability as a float64.

winProb = 1 / (10^-((teamR - oppR)/400) + 1)

winProb := elo.WinProbability(teamRating, opponentRating)

winProb := elo.WinProbability(1640, 1535)
// 0.647 (or 64.7%)