This page explains how Amory A. Aldrich (USATT# 62984)'s rating went from 933 to 918 at the 1994 Tri-State Open held on - 30 Apr 1994. 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.