This page explains how Lijuan Hu (USATT# 197373)'s rating went from 629 to 613 at the Topspin Open League event from 11 Sep 2015. 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.