This page explains how Jack Gelman (USATT# 46810)'s rating went from 1995 to 2056 at the Potomac Open held on - 18 Nov 2001. 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.