This page explains how Malcolm Darukhanawalla (USATT# 73345)'s rating went from 590 to 620 at the Beginner League event from 9 Feb 2011. 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.