This page explains how Michael G. Dewynter (USATT# 21312)'s rating went from 1918 to 1955 at the Sacramento Summer Open held on - 22 Jul 2006. 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.