This page explains how Malcolm Darukhanawalla (USATT# 73345)'s rating went from 280 to 280 at the Beginner League event from 27 Jan 2010. 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.