This page explains how Bruce Gendron (USATT# 6064)'s rating went from 1284 to 1262 at the Mohawk Valley TTC League event from 14 Apr 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.