This page explains how John Mark Wetzler (USATT# 11058)'s rating went from 2297 to 2248 at the MDTTC Elite League event from 12 Jan 2004. 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.