This page explains how Yangui Tao (USATT# 34560)'s rating went from 1268 to 1263 at the Intermediate League event from 14 Oct 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.