This page explains how Andy Pelshe (USATT# 33239)'s rating went from 1496 to 1490 at the PWTTC event from 19 Nov 2003. 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.