This page explains how Lijuan Hu (USATT# 197373)'s rating went from 622 to 607 at the Topspin Open League event from 1 Aug 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.