This page explains how Rachel Jiayu Sung (USATT# 82232)'s rating went from 660 to 900 at the 2012 Western Open on JOOLA North America Tour held on - 19 Feb 2012. 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.