This page explains how David S. Chu (USATT# 4872)'s rating went from 2039 to 2042 at the ICC California State Open held on - 18 Mar 2012. 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.