This page explains how Philippe Dassonval (USATT# 60396)'s rating went from 2128 to 2124 at the Central Carolinas Super League event from 30 Dec 2010. 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.