This page explains how Tim Yee (USATT# 74804)'s rating went from 1147 to 1130 at the AZ PTTC Wednesday event from 19 Oct 2011. 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.