This page explains how Jimmy Butler (USATT# 4594)'s rating went from 2676 to 2644 at the Louisana Open, America All-Sta held on - 14 Sep 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.