This page explains how Jose Borges (USATT# 4347)'s rating went from 1581 to 1584 at the Baystate Winter Open held on - 28 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.