This page explains how Sam Roberson (USATT# 25)'s rating went from 1748 to 1747 at the 23rd Annual Golden State Open held on - 25 May 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.