This page explains how John B. Allen (USATT# 3836)'s rating went from 2084 to 2069 at the Kentuckiana League event from 13 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.