This page explains how Danny Hui (USATT# 70967)'s rating went from 1850 to 1823 at the ICC Juniors and Adults League event from 21 Jul 2008. 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.