This page explains how Andy Pelshe (USATT# 33239)'s rating went from 1550 to 1557 at the Long Island Championships held on - 4 May 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.