This page explains how Hau Lam (USATT# 37020)'s rating went from 2131 to 2124 at the 2014 SPTTC Open held on - 27 Jul 2014. 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.