This page explains how Anthony Gegelys (USATT# 6051)'s rating went from 1539 to 1513 at the Champions November Open held on - 9 Nov 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.