This page explains how Rob Sharp (USATT# 21995)'s rating went from 1612 to 1645 at the "Dave Zapatka" Springfield Ope held on - 6 Nov 2004. 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.