This page explains how Sean Zhu (USATT# 22388)'s rating went from 1097 to 1093 at the Maryland Giant RR held on - 15 Dec 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.