This page explains how David Helman (USATT# 29525)'s rating went from 1206 to 1208 at the 2006 Rose City Open held on - 18 Jun 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.