This page explains how Derek Nie (USATT# 77564)'s rating went from 2053 to 2067 at the MDTTC Saturday League event from 9 Sep 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.