This page explains how George S. Aitken (USATT# 3797)'s rating went from 1576 to 1565 at the Westfield September Open held on - 25 Sep 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.