This page explains how Nick Nicioli (USATT# 35486)'s rating went from 1379 to 1323 at the Schaumburg Summer Open held on - 31 Jul 2010. 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.