This page explains how John Potochnik (USATT# 53831)'s rating went from 1705 to 1668 at the St. Louis Open Team Tournament held on - 29 Apr 2000. 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.