This page explains how Joseph Aracri (USATT# 14372)'s rating went from 1248 to 1247 at the Orlando Winter Open held on - 1 Feb 1998. 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.