This page explains how Corey Mcelveen (USATT# 18230)'s rating went from 1398 to 1382 at the Atlanta Winter Open held on - 5 Dec 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.