This page explains how Brad Wommack (USATT# 53417)'s rating went from 1558 to 1555 at the Missouri Winter Games held on - 1 Mar 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.