World Riichi League Player Skill Rating

Abstract

In this table are displayed the skill ratings computed for everyone that entered at least one World Riichi League tournament.

After each rated game played, every player’s skill rating (μ) is updated, depending on how well they performed and on the estimated skill rating of their opponents at that time. σ represents the uncertainty on the μ value it goes with, diminishing with every game played and going back up with time passing without playing rated games. μ and σ are the only values actually computed by our model, the rating projection is an ordinal value melting those μ and σ in a 1500-centered rating system for readability.

However, after a significant amount of rated games, this projection will become relevant enough to create rating targets for people that want to go up in the Dan-I system that shall come along this rating system when the League and its players goes professional.