This page explains how David S. Chu (USATT# 4872)'s rating went from 2069 to 2080 at the Swan Friday O2000 Team League event from 4 Jan 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.