This page explains how Hau Lam (USATT# 37020)'s rating went from 2100 to 2103 at the US Open held on - 6 Jul 2013. 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.