If a player does not compete during the rating period their rating and volatility parameters remain the same, but the rating deviation increases.
If a player does not compete during the rating period their rating and volatility parameters remain the same, but the rating deviation increases.
The Glicko-2 system works best when the number of games in a rating period is moderate to large, i.e. at least 10-15 games per player in a rating period.
number of rating periods to decay //todo test
Computes the quantity ∆, the estimated improvement in rating by comparing the pre-period rating to the performance rating based only on game outcomes
Computes estimated variance of the player’s rating based on game outcomes