This page explains how Corey Mcelveen (USATT# 18230)'s rating went from 1374 to 1320 at the Atlanta "Spring" Open held on - 8 May 1999. 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.