This page explains how Brian Bartley (USATT# 54303)'s rating went from 2011 to 2109 at the 2011 "Think Spring" Open held on - 20 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.