This page explains how Jim Chai (USATT# 1648)'s rating went from 2103 to 2003 at the Milpitas Sports Center event from 8 Mar 2004. 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.