This page explains how Kraig Murray (USATT# 221332)'s rating went from 1505 to 1497 at the AZ PTTC Monday event from 3 Dec 2018. 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.