This page explains how Thomas G Migliaccio (USATT# 24076)'s rating went from 1993 to 1939 at the AZ PTTC Monday event from 24 Mar 2018. 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.