This page explains how Robert Trudell (USATT# 60358)'s rating went from 1930 to 1948 at the 1997 Arizona Closed held on - 26 Apr 1997. 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.