This page explains how Calvin Tinhang Chan (USATT# 73906)'s rating went from 1272 to 1271 at the 5th Everbright Open TT Champio held on - 8 Nov 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.