This page explains how George Guo (USATT# 4780)'s rating went from 2172 to 2176 at the 1997 Michigan State Championsh held on - 6 Apr 1997. 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.