This page explains how Glenn Wambold (USATT# 12851)'s rating went from 970 to 962 at the AZ PTTC Wednesday event from 8 Jan 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.