This page explains how George Nie (USATT# 71290)'s rating went from 1968 to 1927 at the MDTTC Saturday League event from 28 Feb 2010. 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.