This page explains how Joe E. Griffis (USATT# 6276)'s rating went from 2021 to 2023 at the Virginia Open held on - 12 Mar 2005. 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.