This page explains how Michael Leitzel (USATT# 63287)'s rating went from 1879 to 1836 at the MATTC October Open held on - 21 Oct 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.