This page explains how Joanne Gipple (USATT# 20625)'s rating went from n/a to 1226 at the Aurora TTC League event from 9 May 2008. 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.