This page explains how Patrick Keville (USATT# 77971)'s rating went from 1174 to 1172 at the 10th FIT Open TT Championship held on - 1 Mar 2009. 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.