This page explains how Panno Dok (USATT# 59781)'s rating went from 1990 to 1964 at the AZ PTTC Monday event from 4 Jun 2012. 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.