This page explains how Si-Dung Lam (USATT# 65505)'s rating went from 1709 to 1686 at the OKC Spring Teams held on - 27 Mar 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.