This page explains how Ray A. Robertson (USATT# 63884)'s rating went from 1455 to 1467 at the AZ PTTC Monday event from 23 Mar 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.