This page explains how Lewis Andrew Bragg (USATT# 4404)'s rating went from 1777 to 1776 at the Butterfly East Gate TT Tour. S held on - 8 Dec 2007. 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.