This page explains how Matt Heaton (USATT# 72840)'s rating went from 1568 to 1566 at the Utah Valley TT Open held on - 21 Apr 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.