This page explains how Peter Lawrence (USATT# 75892)'s rating went from 1605 to 1603 at the 2010 International Heritage Team TT Tournament held on - 27 Feb 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.