This page explains how Si-Dung Lam (USATT# 65505)'s rating went from 1657 to 1611 at the 2010 DFWTT Fall Open held on - 13 Nov 2010. 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.