This page explains how Kim S. Brastow (USATT# 4415)'s rating went from 1830 to 1749 at the Boston November Open held on - 3 Nov 2002. 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.