This page explains how Kurt Douty (USATT# 5442)'s rating went from 2127 to 2121 at the Frank Dwelly Memorial Cup held on - 27 Jan 2008. 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.