This page explains how Gary Fang (USATT# 30341)'s rating went from 1690 to 1679 at the Milpitas Sports Center event from 15 Jan 2005. 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.