This page explains how Yangui Tao (USATT# 34560)'s rating went from 1021 to 1019 at the Golden State Open held on - 30 May 2010. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.