This page explains how Lukasz Daniel Fita (USATT# 31834)'s rating went from 2321 to 2319 at the Chicago Slam TTC Open held on - 18 Oct 2009. 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.