This page explains how Larry Thoman (USATT# 10540)'s rating went from 1967 to 1991 at the 42nd St. Joseph Valley Open held on - 18 Mar 2007. 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.