This page explains how Peter Jie Yang (USATT# 78089)'s rating went from 2103 to 2065 at the St. Patricks Day Open held on - 17 Mar 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.