This page explains how Cory Eider (USATT# 62727)'s rating went from 2222 to 2215 at the Minnesota Saturday Open event from 7 Nov 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.