This page explains how George Davis (USATT# 10910)'s rating went from 1684 to 1666 at the AZ PTTC Monday event from 2 Nov 2015. 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.