OGS has a new Glicko-2 based rating system! [2017]

Example of the Glicko-2 system (excerpt, page 2)

We now want to update the rating of a player with (Glicko-2) rating µ, rating deviation
φ, and volatility σ. He plays against m opponents with ratings µ1; : : : ; µm, rating
deviations φ1; : : : ; φm. Let s1; : : : ; sm be the scores against each opponent (0 for a loss,
0.5 for a draw, and 1 for a win). The opponents’ volatilities are not relevant in the

So does this means that a draw would count as a half win for each player in a match that ends in a draw?

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