This page explains how Josh Bornstein (USATT# 10143)'s rating went from 1670 to 1672 at the Pacific Coast Open held on - 12 Sep 1999. 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.