This page explains how Alan Li (USATT# 8939)'s rating went from 550 to 600 at the Paddle Palace 2003 Seattle Ope held on - 8 Jun 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.