This page explains how Peter Bragau (USATT# 69801)'s rating went from 1671 to 1642 at the AZ PTTC Monday event from 11 Mar 2013. 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.