This page explains how Dan Seemiller Jr (USATT# 27825)'s rating went from 2173 to 2169 at the ICC - Advanced League event from 5 Sep 2011. 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.