This page explains how Kim S. Brastow (USATT# 4415)'s rating went from 1837 to 1820 at the 2005 Rhode Island Open held on - 3 Apr 2005. 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.