This page explains how Henry Kwong (USATT# 47929)'s rating went from 2002 to 1975 at the Swan Friday O2000 Team League event from 20 Nov 2015. 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.