This page explains how Derek Lee (USATT# 75598)'s rating went from 1275 to 1264 at the 13th FIT Open TT Championships held on - 31 Oct 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.