This page explains how Alex Sumeri (USATT# 52673)'s rating went from 1692 to 1630 at the Tri-Cities Fall Open Double RR held on - 19 Oct 2008. 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.