This page explains how David Chow (USATT# 27027)'s rating went from 1932 to 1867 at the Concord Cup Youth Open held on - 5 Nov 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.