This page explains how Xingang Huang (USATT# 84304)'s rating went from 1985 to 1954 at the SVTTC Sunday U2000 event from 5 Jan 2014. 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.