This page explains how Philippe Dassonval (USATT# 60396)'s rating went from 2217 to 2209 at the 2010 BTTC Open held on - 2 May 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.