This page explains how Michael Leitzel (USATT# 63287)'s rating went from 1904 to 1920 at the MATTC September Open held on - 24 Sep 1995. 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.