This page explains how Jim Chai (USATT# 1648)'s rating went from 2085 to 2077 at the Milpitas Sports Center event from 21 Apr 2007. 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.