This page explains how David Evans (USATT# 83272)'s rating went from 1237 to 1218 at the AZ PTTC Monday event from 3 Mar 2014. 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.