This page explains how Paul N. Doumitt (USATT# 5441)'s rating went from 767 to 1097 at the Portland Double RR Open held on - 9 Dec 2000. 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.