This page explains how George Scheipner (USATT# 9767)'s rating went from 1366 to 1312 at the Davison September Open held on - 12 Sep 1998. 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.