This page explains how Gerald Chang (USATT# 24456)'s rating went from 1634 to 1614 at the LYTTC January Open held on - 13 Jan 2013. 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.